Charakterisierung von nanoporösen Trägerschichten für Mikroreaktoren, M. Wandel, 1999, Universität Tübingen.

Umsatzmessungen an Zinndioxidsensoren mit Massenspektrometrie, W. Schmid, 2000, Universität Tübingen.

Austrittsarbeitsänderung bei polymerbeschichteten Sensorstrukturen: Bestimmung mit der Kelvin-Methode, M. Harbeck, 2000, Universität Tübingen.

CO-Detektoren mit Pt-dotierten SnO2-Dickschichtsensoren unter Einfluss der Luftfeuchtigkeit mittels Impedanzspektroskopie, O. Sachlara, 2001, Universität Tübingen.

Kalibration von Multisensorsystemen, M. Nagel, 2001, Universität Tübingen.

Sensortests und Mustererkennung an Gassensoren, U. Weimar, 1989, Universität Tübingen.

Oxidgassensoren und Multikomponentenanalyse, U. Weimar, 1993, Universität Tübingen.

Wechselwirkung von Sauerstoff mit Zinkoxid-Einkristall-Oberflächen im Ultrahochvakuum, W. Göpel, Habilitationsschrift, 1975, Hannover.

Gas Sensing with Tin Oxide: Elementary Steps and Signal Transduction, U. Weimar, 2002, Universität Tübingen.

Isotopie-Effekte im Virialkoeffizienten, W. Göpel and Th. Dorfmüller, Ber.Bunsenges.Phys.Chem., 75, 1971, 1144.

Intermolekulare Wechselwirkung der deuterierten Äthylenmoleküle in der Gasphase, Th. Dorfmüller and W. Göpel, Z.Phys.Chem.N.F., 82, 1972, 66-82.

Isotopie-Effekte im zweiten Virialkoeffizienten deuterierter Äthylene, W. Göpel and Th. Dorfmüller, Z.Phys.Chem.N.F., 82, 1972, 58-65.

FMR an Nickelschichten, S. Bagdonat, W. Göpel and R. Haul, Ber.Bunsenges.Phys.Chem., 77, 1973, 1025.

Ferromagnetische Resonanz dünner Nickel-Aufdampfschichten, S. Bagdonat and W. Göpel, Z.Phys.Chem.N.F., 87, 1973, 23-39.

Untersuchungen zur ferromagnetischen Resonanz dünner Nickel-Aufdampfschichten, S. Bagdonat, W. Göpel and R. Haul, Z.Phys.Chem.N.F., 87, 1973, 11-22.

Elementarschritte der Wechselwirkung von O2 mit ZnO-Einkristall-Oberflächen nach thermischem Aktivieren, W. Göpel, R. Haul and U. Lampe, Ber.Bunsenges.Phys.Chem., 79, 1975, 1162.

Debye Temperatures and Step Arrays of ZnO(1010) Surfaces Determined by LEED, W. Göpel and N. Neuenfeld, Surf.Sci., 55, 1976, 362-366.

Augerspektroskopie, LEED, thermische Desorptionsspektroskopie, Isotopenaustausch sowie Änderung der Leitfähigkeit und Austrittsarbeit am System ZnO/O2, W. Göpel, BMVG-FBW, 76-20, 1976, 133-150.

Geometrische und elektronische Struktur von ZnO(1010)-Oberflächen, W. Göpel, Ber.Bunsenges.Phys.Chem., 80, 1976, 1241.

Grundlagenforschung, Elementarvorgänge der heterogenen Katalyse, W. Göpel (Coauthor), BMFT-Study Chemische Technik, Forschung und Entwicklung zur Sicherung der Rohstoffversorgung, DECHEMA (Ed.), Vol. 2, 1976.

Elementarschritte der Chemisorption von Sauerstoff an ZnO(1010)-Oberflächen, W. Göpel, Ber.Bunsenges.Phys.Chem., 80, 1976, 481-486.

Oxygen Interaction of Stoichiometric and Nonstoichiometric ZnO Prismatic Surfaces, W. Göpel, Surf.Sci., 62, 1977, 165-182.

Ferromagnetic Resonance and Torsions Magnetometry on Oligatomic Ni/Fe-Films, W. Dahle, W. Göpel, U. Gradmann and K. Salewski, Appl.Phys., 13, 1977, 239-244.

Ferromagnetic Resonance of Nickel Thin Films Influenced by H2 and CO Adsorption, J.K. Blum and W. Göpel, J.Magn.Magnet.Mat., 6, 1977, 186-191.

Influence of Hydrogen Chemisorption on the Magnetism of Nickel Thin Films, J.K. Blum and W. Göpel, Thin Solid Films, 42, 1977, 7-15.

The Influence of Thermal Pretreatment on Atomic Defects of ZnO(1010) Surfaces, W. Göpel and U. Lampe, Proc.7th Intern.Vac.Congr., 3rd Intern.Conf.Sol.Surf., 1977, 851, Vienna (A).

Instationäre Sublimation von Prismenoberflächen des Zinkoxids, W. Göpel, Z.Phys.Chem.N.F., 106, 1977, 211-224.

The Influence of Chemisorbed Gases on the Ferromagnetic Resonance of Ni and Fe Thin Films, J.K. Blum and W. Göpel, Proc.7th Intern.Vac.Congr., 3rd Intern.Conf.Sol.Surf., 1977, 1869, Vienna (A).

Elektronentransfer bei der Wechselwirkung von Gasen mit Zinkoxid-Einkristallen, W. Göpel, Verh.Dt.Phys.Ges., 2, 1978, 601.

Magnetic Structures and Stresses in Thin Films, I. Ferromagnetic Resonance Experiments, W. Göpel and J.K. Blum, Ber.Bunsenges.Phys.Chem., 82, 1978, 329-334.

Reactivity, Electronic Structures and Geometry of Nonpolar Zincoxide Surfaces, W. Göpel, Ber.Bunsenges.Phys.Chem., 82, 1978, 744-756.

Chemisorption und Ferromagnetismus von Ni- und Fe-Schichten, W. Göpel and J.K. Blum, Verh.Dt.Phys.Ges., 2, 1978, 568.

Reactions of Oxygen with ZnO(1010) Surfaces, W. Göpel, J.Vac.Sci.Technol., 15, 1978, 1298-1310.

CO2 and CO Chemisorption on (1010) Zincoxide Surfaces, W. Hotan, W. Göpel and R. Haul, Proc.1st Europ.Conf.Surf.Sci., (1978); Ned.Tijdschr.Vac., 16, 1978, 61-62, Amsterdam.

Chemisorption und Ferromagnetische Resonanz, W. Göpel, Ber.Bunsenges.Phys.Chem., 82, 1978, 1245.

The Use of Externally Applied Magnetic Fields in the Study of Chemisorption on Metal Films, G. Wedler and W. Göpel, Thin Solid Films, 50, 1978, 371-382.

Magnetic Structures and Stresses in Thin Films, II. Thermodynamical Treatment and Discussion, W. Göpel, Ber.Bunsenges.Phys.Chem., 82, 1978, 1023-1035.

Chemisorption Studies on Ni and Fe Films by Means of Ferromagnetic Resonance (FMR), J.K. Blum and W. Göpel, Z.Phys.Chem.N.F., 109, 1978, 187-203.

Reaktivität und elektronische Eigenschaften von Punktdefekten, U. Lampe and W. Göpel, Verh.Dt.Phys.Ges., 1, 1979, 307.

Initial Steps of Interface Formation: Surface States and Thermodynamics, W. Göpel, J.Vac.Sci.Technol., 16, 1979, 1229-1235.

Interaction of CO and CO2 with Nonpolar Zincoxide Surfaces, W. Hotan, W. Göpel and R. Haul, Surf.Sci., 83, 1979, 162-180.

Magnetic Dead Layers on Chemisorption at Ferromagnetic Surfaces, W. Göpel, Surf.Sci., 85, 1979, 400-412.

Halbleiter-Gas-Modellreaktionen an ZnO-Einkristallen, -Aufdampfschichten und -Pulvern, F. Runge and W. Göpel, Verh.Dt.Phys.Ges., 1, 1979, 308.

Surface Point Defects and Schottky Barrier Formation on ZnO(1010), W. Göpel, L.J. Brillson and C.F. Brucker, J.Vac.Sci.Technol., 17, 1980, 894-898.

Charge Transfer Reactions on Semiconductor Surfaces, W. Göpel, Festkörperprobleme: Advances in Solid State Physics, J. Treusch (Ed.), Vieweg, Vol. XX, 1980, 177-227, Braunschweig (FRG).

Intrinsic Point Defects of Semiconductor Surfaces: Studies on the Prototype System ZnO(1010), U. Lampe and W. Göpel, Le Vide, Les Couches Mines (Proc.Europ.Conf.Surf.Sci. Cannes 1980), D.A. Degras and M. Costa (Eds.), Societé Francaise du Vide, Vol. Suppl, 1980, 1011-1013, Paris (F).

Magnetic Anisotropies of Ferromagnetic Surfaces: Ferromagnetic Resonance Studies of Ni- and Fe-Films, W. Göpel, B. Kühnemann and B. Wiechmann, Le Vide, Les Couches Mines (Proc.Europ.Conf.Surf.Sci. Cannes 1980), D.A. Degras and M. Costa (Eds.), Societé Francaise du Vide, Vol. Suppl, 1980, 1040-1043, Paris (F).

Chemisorption und Reaktion von O2 mit Si(111): Winkelaufgelöste Untersuchungen mit Synchrotronstrahlung, R.Z. Bachrach, S. Bauer, W. Göpel and G.V. Hansson, Verh.Dt.Phys.Ges., 5, 1980, 711.

Halbleiter/Gas-Wechselwirkung mit und ohne Beteiligung von Leitungselektronen, H.C. Langowsky and W. Göpel, Verh.Dt.Phys.Ges., 5, 1980, 718.

Comparative Study on the Reactivity of Polycrystalline and Single Crystal ZnO Surfaces: O2 and CO2 Interaction, F. Runge and W. Göpel, Z.Phys.Chem.N.F., 123, 1980, 173-192.

Electronic Structure of Si(111) Surfaces, G.V. Hansson, R.Z. Bachrach, R.S. Bauer, D.J. Chadi and W. Göpel, Surf.Sci., 99, 1980, 13-27.

The Influence of Defects on the Electronic Structure on Zincoxide Surfaces, W. Göpel and U. Lampe, Phys.Rev. B, 22, 1980, 6447-6462.

Thermodynamics of Oxygen Vacancy Defects on Thin Film ZnO Surfaces as Measured by Electrical Conductivity, W. Seehausen, W. Göpel, R. Haul and U. Lampe, Le Vide, Les Couches Mines (Proc.Europ.Conf.Surf.Sci. Cannes 1980), D.A. Degras and M. Costa (Eds.), , Societé Francaise du Vide, Vol. Suppl, 1980, 366-369, Paris (F).

Surface States and Charge Transfer on Semiconductors: Chemisorption on ZnO(1010) for Different Dopings, W. Göpel and Ch. Langowsky, Le Vide, Les Couches Mines (Proc.Europ.Conf.Surf.Sci. Cannes 1980), D.A. Degras and M. Costa (Eds.), Societé Francaise du Vide, Vol. Suppl, 1980, Paris (F).

Magnetische und geometrische Struktur von Nickel-Aufdampfschichten und -Clustern, J. Jütte, B. Kühnemann and W. Göpel, Verh.Dt.Phys.Ges., 5, 1980, 621.

Surface Point Defects and Charge Transfer Reactions, W. Göpel, Proc.9th Intern.Symp.on the Reactivity of Solids, 1980, 313, Krakau (Poland).

Katalytische CO-Oxidation an ZnO(1010), P. Esser, F. Runge and W. Göpel, Verh.Dt.Phys.Ges., 5, 1980, 717.

Ultraviolet-Photoemission Studies of Chemisorption and Point Defect Formation on ZnO Nonpolar Surfaces, W. Göpel, R.S. Bauer and G.V. Hansson, Surf.Sci., 99, 1980, 138-158.

Physical Adsorption on Single Crystal Zincoxide, P. Esser and W. Göpel, Surf.Sci., 97, 1980, 309-318.

Magnetic Anisotropies of Ferromagnetic Surfaces, W. Göpel, B. Kühnemann and B. Wiechmann, Z.Phys.Chem.N.F., 122, 1980, 75-89.

Kinetics of the Catalytic CO-Oxidation on ZnO, P. Esser, R. Feierabend and W. Göpel, Le Vide, Les Couches Mines (Proc.Europ.Conf.Surf.Sci. Cannes 1980), D.A. Degras and M. Costa (Eds.), Societé Francaise du Vide, Vol. Suppl, 1980, 436-439, Paris (F).

Ferromagnetic Resonance in the Study of Surface Demagnetization due to Chemisorption, W. Göpel, Thin Solid Films, 69, 1980, 131-135.

Ultraviolet-Photoemission and Electron-Energy-Loss Studies of Physisorption and Chemisorption on Transition-Metal Oxides, W. Göpel, Conf.Proc.7th Simposio Iberoamericano de Catalisis, 1980, La Plata (Argentina).

UPS- und ELS-Untersuchungen zur Physisorption, Chemisorption und Ausbildung von Punktdefekten an ZnO(1010), W. Göpel and R.S. Bauer, Verh.Dt.Phys.Ges., 5, 1980, 717.

Surface Point Defects and Schottky Barriers on Transition Metal Oxides, W. Göpel and L.J. Brillson, Proc.7.Conf.Phys.Comp.Semicond.Interfaces, 1980, Colorado (USA).

Bestimmung magnetischer Strukturen von Einbereichsteilen mit der ferromagnetischen Resonanz, B. Wiechmann and W. Göpel, Verh.Dt.Phys.Ges, 3, 1981, 279.

Structure of Disordered Oxygen Chemisorbed on Si(111): PARUPS Experiments and Theory, R.S. Bauer, R.Z. Bachrach, H.W. Sang, G.V. Hansson and W. Göpel, Stanford Synchrotron Radiation Laboratory Activity Report, 81/02, 1981, VII-05-VII.

Cluster-Berechnungen zur Ladungsübertragung bei Adsorption an ionischen Halbleitern, W. Göpel and G. Rocker, Verh.Dt.Phys.Ges, 3, 1981, 256-257.

Comparative Study on the Reactivity of Polycrystalline and Single Crystal ZnO Surfaces: Catalytic Oxidation of CO, P. Esser, R. Feierabend and W. Göpel, Ber.Bunsenges.Phys.Chem, 85, 1981, 447-455.

Angle-Resolved Photoemission from Polar and Nonpolar Zincoxide Surfaces, W. Göpel, J. Pollmann, I. Ivanov and B. Reihl, Phys.Rev. B, 26, 1982, 3144-3150.

Localized and Delocalized Charge Transfer During Adsorption on Semiconductors: Experiments and Cluster Calculations on the Prototype Surface ZnO(1010), W. Göpel and G. Rocker, Conf. Proc. 9th Ann.Conf. Physics and Chemistry of Semiconductor Interfaces J.Vac.Sci.Technol, 21, 1982, 389-397, Asilomar (USA).

Magnetic Anisotropies of Single Domain Particles as Determined by Ferromagnetic Resonance, W. Göpel and B. Wiechmann, J.Vac.Sci.Technol, 20, 1982, 219-225.

Chemisorption and Electronic Charge Transfer on Ionic Semiconductor Surfaces, W. Göpel, Conf.Proc.16.Intern.Conf.Phys.of Semiconductors, 1982, Montpellier (F).

Chemisorption and Electronic Charge Transfer at Ionic Semiconductor Surfaces, W. Göpel, Physica B, 117/118, 1983, 789-791.

Monohydride and Dihydride Formation at Si(100) 2x1: A High Resolution Electron Energy Loss Spectroscopy Study, F. Stucki, J.A. Schaefer, J.R. Anderson, G.J. Lapeyre and W. Göpel, Sol.State Comm, 47, 1983, 795-801.

Identification of Surface Vibrations on Clean and Oxygen Covered Pt(111) Surfaces with High Resolution Electron Energy Loss Spectroscopy, J.A. Schaefer and W. Göpel, J.Electron Spectrosc.Relat.Phenom, 29, 1983, 279-285.

Chemisorption and Electronic Charge Transfer on the Ionic Semiconductor Surfaces ZnO(1010) and TiO2(110), W. Göpel, Proc.Intern.Meeting on Chemical Sensors, A 107, Fukuoka (Japan), 1983, 107-108, Elsevier, Amsterdam (NL).

Intrinsic Defects of TiO2(110): Interaction with Chemisorbed O2, H2, CO and CO2, W. Göpel, G. Rocker and R. Feierabend, Phys.Rev. B, 28, 1983, 3427-3438.

Adsorption of H, O and H2O at Si(100) and Si(111) Surfaces in the Monolayer Range: A combined EELS, LEED and XPS Study, J.A. Schaefer, F. Stucki, D. Frankel, W. Göpel and G.J. Lapeyre, J.Vac.Sci.Technol. B, 2, 1984, 359-365.

Coverage- and Temperature-Dependent Vibrational Spectra of Hydrogen Chemisorbed on Si(100)2x1, J.A. Schaefer, F. Stucki, J.A. Anderson, G.J. Lapeyre and W. Göpel, Surf.Sci., 140, 1984, 207-215.

Localized and Delocalized Vibrations at TiO2(110) Studied by High Resolution Electron Energy Loss Spectroscopy (EELS), G. Rocker, J.A. Schaefer and W. Göpel, Phys.Rev. B, 30, 1984, 3704-3708.

Surface Defects of TiO2(110): A combined XPS, XAES and ELS Study, W. Göpel, J.A. Anderson, D. Frankel, M. Jaenig, K. Phillips, J.A. Schaefer and G. Rocker, Surf.Sci., 139, 1984, 333-346.

Chemical Shifts of Si-H Stretching Frequencies at Si(100) Surfaces Pre-Exposed to Oxygen in the Submonolayer Range, J.A. Schaefer, J.A. Anderson, D. Frankel, F. Stucki, W. Göpel and G.J. Lapeyre, Surf.Sci, ., 139, 1984, L209-L218.

Initial Stages of Oxidation of Si(100) (2x1): A Combined Vibrational (EELS) and Electron-Binding-Energy (XPS) Study, J.A. Schaefer and W. Göpel, Surf.Sci., 155, 1985, 535-552.

Entwicklung chemischer Sensoren: Empirische Kunst oder systematische Forschung?, W. Göpel, Technisches Messen, 52, 1985, 47, 92 and.

Chemisorption and Charge Transfer at Semiconductor Surfaces: Implications for Designing Gas Sensors, W. Göpel, Progr.Surf.Sci., 20, 1985, 9-103.

Elektronentransfer an Oberflächen ionischer Halbleiter, W. Göpel, Festschrift '35 Jahre Fonds der Chemischen Industrie', VCI, 1985, 35-52, Frankfurt (FRG).

Chemisorption of H2 and CO on Stoichiometric and Defective TiO2(110), G. Rocker and W. Göpel, Surf.Sci., 175, 1986, L675-L680.

Gas-Sensing and Catalytic Activity of Metal Oxide Sensors: Conductivity, Work Function, and Mass- Spectrometric Studies, R. Kowalkowski, E. Schwarz and W. Göpel, Proc.2nd Intern.Meeting on Chem.Sensors, 1986, 191-192, Bordeaux (F).

Trends bei der Entwicklung chemischer Sensoren, W. Göpel, Fortschritte in der Meß- und Automatisierungstechnik durch Informationstechnik, Conf. Proc. INTERKAM, Springer, Berlin (FRG), 1986.

Defect Structure and Sensing Mechanism of SnO2 Gas Sensors: Comparative Electrical and Spectroscopic Studies under High Pressure- and UHV-Conditions, K.D. Schierbaum, K. Schindler and W. Göpel, Proc.2nd Intern.Meeting on Chem.Sensors, 1986, 195-196, Bordeaux (F).

Gas-Sensing and Thermodynamic Stability of Phthalocyanine Thin Films: Conductivity-, Work Function- and Surface Spectroscopy Studies, L. Dürselen, H. Mockert, D. Schmeißer and W. Göpel, Proc.2nd Intern.Meeting on Chem.Sensors, 1986, 193-194, Bordeaux (F).

Structure and Reactivity of the System Si/SiO2/Pd: A Combined XPS, UPS and HREELS-Study, B. Schleich, D. Schmeißer and W. Göpel, Surf.Sci., 191, 1987, 367-384.

Titanium Overlayers on TiO2(110), G. Rocker and W. Göpel, Surf.Sci., 181, 1987, 530-558.

Growth of Ordered Al2O3-(1x1) Passivation Layers on InP(100), R. Hornstein, D. Schmeißer, W. Göpel and M. Kunst, Surf.Sci., 192, 1987, 563-572.

Biosensorik, W. Göpel, Techn.Mitt.HDT Essen, 10, 1987, 529-532.

Chemische Feldeffekt-Sensoren, W. Göpel and F. Oehme, Hard and Soft, Fachbeilage Mikroperipherik, 3, 1987, 1-3.

Chemische Sensorik und heterogene Katalyse, W. Göpel, Proc. AMA-GDCh-Tagung Chemische und Biochemische Sensoren, Friedrichsdorf (FRG), ACS, 1987, 43-62, Wunstorf (FRG).

Trends bei der Entwicklung chemischer Sensoren, W. Göpel, Jahrbuch Meßtechnik 1987, H.D. Junge (Ed.), VCH, 1987, 147-162, Weinheim (FRG).

Scanning Electron Microscope Studies on the Breakdown of Passivity of a Nickel-Chromium-Molybdenum Dental Alloy, J. Geis-Gerstorfer, W. Göpel and H. Weber, Scanning Microsc., 1, 1987, 1081-1087.

Chemische und Biochemische Sensoren: Definitionen und Marktübersicht, W. Göpel, Sensor-Magazin, 5, 1987, 52-53.

Forschungs- und Entwicklungstrends (bio-)chemischer Sensoren, W. Göpel, Proc. AMA-GDCh-Tagung Chemische und Biochemische Sensoren Friedrichsdorf (FRG), ACS, 1987, 293-314, Wunstorf (FRG).

The Electronic Structure of (2-X-5-M-DCNQI)2Cu, D. Schmeißer, K. Graf, W. Göpel, J.U. von Schütz, P. Erk and S. Hünig, Chem.Phys.Lett., 148, 1988, 423-428.

Surface and Bulk Properties of TiO2 in Relation to Sensor Applications, W. Göpel, U. Kirner, G. Rocker and H.-D. Wiemhöfer, Sol.State Ion., 28-30, 1988, 1423-1430.

Resonante Photoemission an (DM-DCNQI)2 Cu Salzen, D. Schmeißer, K. Graf, W. Göpel, J.U. von Schütz, R. Dudde, K.H. Frank and E.E. Koch, Jahresbericht BESSY, 1988.

Kinetics and Reconstruction of Steps at the Si(100) Surface, W. Weiß, D. Schmeißer and W. Göpel, Phys.Rev.Lett., 60, 1988, 1326-1329.

Investigations on the Bulk Defect Chemistry of Polycrystalline Tin(IV)-Oxide, J. Maier and W. Göpel, J.Solid State Chem., 72, 1988, 293-302.

The Conducting Salts of N,N-Dicyanoquinonediimine (DCNQI), J.U. von Schütz, M. Bair, H.J. Gross, U. Langohr, H.-P. Werner, H.C. Wolf, D. Schmeißer, K. Graf, W., Synth.Met., 27, 1988, B249-B256.

Trends bei der Entwicklung chemischer Sensoren und Katalysatoren, W. Göpel, in: K.W. Bonfig, W.J. Bartz and J. Wolff (Eds.), Das Handbuch für Ingenieure, 1988, 2, 608-763, Ehningen (FRG).

Defect Structure and Sensing Mechanism of SnO2 Gas Sensors: Comparative Electrical and Spectroscopic Results, K.D. Schierbaum, H.-D. Wiemhöfer and W. Göpel, Sol.State Ion., 28-30, 1988, 1631-1636.

Interaction of Metals with Cadmium Arachidate Langmuir-Blodgett Films Studied by XPS, M. Schreck, D. Schmeißer, W. Göpel, H. Schier, H.U. Habermeier, S. Roth and S. Dulog, Proc.TATF 89; Thin Solid Films, 175, 1989, 95-101.

Biosensor Systems based upon Receptor Functions, W. Göpel, G. Gauglitz, G. Jung and F. Jähnig, Proc.Intern.Workshop 'Biosensors', Braunschweig (1989); GBF Monographs, VCH, 13, 1989, 165-177, Weinheim (FRG).

Interface Reactions of Electronic, Ionic, and Mixed Conductors: Atomic Understanding of Sensor Properties, W. Göpel, Conf.Proc.Int.Symp. on Fine Ceramics, Arita (Japan), 1989, 91-110.

Leadphthalocyanine (PbPc) as a Prototype Organic Material for Gas Sensors: Comparative Electrical and Spectroscopic Studies to Optimize O2 and NO2 Sensing, H. Mockert, D. Schmeißer and W. Göpel, Sensors and Actuators, 19, 1989, 159-176.

Interface Reactions of Electronic, Ionic, and Mixed Conductors: Atomistic Understanding of Fuel Cell and Sensor Properties from Spectroscopy, W. Göpel, Conf.Proc.Solid Oxide Fuel Cell Symp., Nagoya (Japan), 1989, 49-64.

Ta2O5-Gates of pH-sensitive Devices: Comparative Spectroscopic and Electrical Studies, P. Gimmel, B. Gompf, M. Klein, D. Schmeißer, H.-D. Wiemhöfer and W. Göpel, Sensors and Actuators, 17, 1989, 195-202.

Mechanism of gas detection in polycrystalline thick film SnO2 sensors, N. Bârsan, R. Grigorovici, R. Ionescu, M. Motronea, A. Vancu, Thin Solid Films, 171, 1989, 53-63.

Defect Chemistry of Tin(IV)-Oxide in Bulk and Boundary Layers, W. Göpel, J. Maier, K.D. Schierbaum and H.-D. Wiemhöfer, Sol.State Ion., 32/33, 1989, 440-443.

Amperometrische Biosensoren zur Bestimmung von Cholin und Acetylcholin, U. Löffler, U. Wollenberger, F. Scheller and W. Göpel, Fres.Z.Analyt.Chem., 335, 1989, 295-298.

Depth Profiles of Ta2O5/SiO2/Si Structures: A Combined X-Ray-Photoemission, Auger and Secondary-Ion-Mass Spectroscopy Study, P. Gimmel, B. Gompf, W. Neu, B. Suhr, Th. Weitzel, D. Schmeißer and W. Göpel, Fres.Z.Analyt.Chem., 333, 1989, 466-469.

Surface Defects on Si(001), W. Weiß, D. Schmeißer and W. Göpel, Surf.Sci., 207, 1989, 401-417.

Ba2Cu2O5 as a Stable Prototype Material for Investigating the Cu(III)-Problem in High-Tc-Superconductors, U. Straub, D. Krug, Ch. Ziegler, D. Schmeißer and W. Göpel, Mat.Res.Bull, 24, 1989, 681-686.

Spectroscopic and Electrical Studies of Yttria-stabilized Zirconia for Oxygen Sensors, K. Schindler, D. Schmeißer, U. Vohrer, H.-D. Wiemhöfer and W. Göpel, Sensors and Actuators, 17, 1989, 555-568.

Effect of Crystal Form on the Conductance in NO2 of Metalfree and Copper-Phthalocyanine, Y. Sadaoka, T.A. Jones and W. Göpel, J.Mat.Sci.Lett, 8, 1989, 1288-1290.

Surface Defects Exploited for Gas Sensing, W. Göpel, Cryst.Latt.Def.Amorph.Mat., 18, 1989, 315-336.

Preparation and Growth of (Bi,Pb)-Sr-Ca-Cu-O Superconductor Fibers, W. Carrillo-Cabrera, W. Göpel, G.F. de la Fuente and H.R. Verdun, Appl.Phys.Lett., 55, 1989, 1032-1034.

Stability of Organic Thin Films on Inorganic Substrates: Prototype-Studies Using Metal Phthalocyanines, A. Rager, B. Gompf, L. Dürselen, H. Mockert, D. Schmeißer and W. Göpel, J.Molecular Electronics, 5, 1989, 227-238.

La0.175 WO3- Perovskite: Chemical Characterization of the Single Crystal (111) Aqueous Solution Interface by XPS, UPS, H. Kohler, W. Neu, K.-D. Kreuer, D. Schmeißer and W. Göpel, Electrochimica Acta, 34, 1989, 1755-1761.

Solid State Chemical Sensors: Atomistic Models and Research Trends, W. Göpel, Sensors and Actuators, 16, 1989, 167-193.

Prototype Chemical Sensors for the Selective Detection of O2 and NO2 in Gases, "", W. Göpel, K.D. Schierbaum, D. Schmeißer and H.-D. Wiemhöfer, Sensors and Actuators, 17, 1989, 377-384.

Effect of Heat Pre-Treatment on the Electrical Conductance of Lead-Phthalocyanine Films for NO2 Gas Detection, Y. Sadaoka, T.A. Jones and W. Göpel, J.Mat.Sci.Lett., 8, 1989, 1095-1097.

The correspondence between the concentration of ethanol aqueous solutions and the ethanol concentration in the saturated vapours (in Romanian), R. Ionescu, A. Vancu, N. Bârsan, M. Motronea, Revista de Chimie, 40 3, 1989, 256-258.

Ionic Conductivity of Oxygen Ions in YBa2Cu3O7-x, W. Carrillo-Cabrera, H.-D. Wiemhöfer and W. Göpel, Sol.State Ion., 32/33, 1989, 1172-1178.

Orientation and Preparation Dependence of Steps and Defects on GaAs, W. Weiß, W. Ranke, D. Schmeißer and W. Göpel, Surf.Sci., 221, 1989, 91-102.

Influence of High-Temperature Annealing on the (Bi, Pb)2Sr2Ca2Cu3O10 Phase and Determination of its Crystal Structure by X-ray Powder Diffraction, W. Carrillo-Cabrera and W. Göpel, Physica C, 161, 1989, 372-389.

Electrode Kinetics and Interface Analysis of Solid Electrolytes for Fuel Cells and Sensors, W. Göpel and H.-D. Wiemhöfer, Ber.Bunsenges.Phys.Chem., 94, 1990, 981-987.

Prototype Structure for Systematic Investigations of Thin Film Gas Sensors, K.D. Schierbaum, S. Vaihinger, W. Göpel, H.H. van den Vlekkert, B. Kloeck and N.F. de Rooij, Conf.Proc.Eurosensors III, Montreux (CH) (1989); Sensors and Actuators B, 1, 1990, 171-175.

Effect of Nitrogen Dioxide in Air on the Electrical Conductance of Indium Oxide Films With and Without Added Zinc Oxide Prepared by R.F. Sputtering, Y. Sadaoka, T.A. Jones, W. Göpel, S. Kimura and N. Honda, J.Mat.Sci., 25, 1990, 2632-2636.

Investigations of Electrodes for Oxygen Sensors Based upon Lanthanumtrifluoride as Solid Electrolyte, S. Harke, H.-D. Wiemhöfer and W. Göpel, Conf.Proc.Eurosensors III, Montreux (CH) (1989); Sensors and Actuators B, 1, 1990, 188-194.

Effects of Morphology on NO2-Detection in Air at Room Temperature with Phthalocyanine Thin Films, Y. Sadaoka, T.A. Jones, G.S. Revell and W. Göpel, J.Mat.Sci., 25, 1990, 5257-5268.

Electronic and Geometric Structure of Clean InP(001) and of the CaF2/InP(001) Interface, W. Weiß, R. Hornstein, D. Schmeißer and W. Göpel, Conf.Proc.PCSI, USA (1990); J.Vac.Sci.Technol. B, 8, 1990, 715-723.

Porous Glass as a Support for Chemically Bonded Stationary Phases for HPLC, B. Buszewski, M. Hummel, E. Bayer, J. Geiger, K.D. Schierbaum and W. Göpel, Fres.Z.Analyt.Chem., 336, 1990, 403-408.

Conductance Effects of Ammonia on Silver Chloride Boundary Layers, U. Lauer, J. Maier and W. Göpel, Sensors and Actuators B, 2, 1990, 125-131.

Atomistic Understanding of Sensor Mechanisms: Spectroscopic Studies at Prototype Electronic and Ionic Conductors, W. Göpel, Conf.Proc.Solid State Ionics, Hakone (Japan) (1989); Sol.State Ion., 40/41, 1990, 1009-1016.

Microstructured Solid State Ion-Sensitive Membranes by Thermal Oxidation of Ta, P. Gimmel, H.H. van den Vlekkert, K.D. Schierbaum, N.F. de Rooij and W. Göpel, Conf.Proc.Eurosensors III, Montreux (CH) (1989); Sensors and Actuators B, 1, 1990, 345-349.

Effect of Oxidizing Gases on Semiconductivity and Thermal Stability of Phthalocyanine Thin Films, Y. Sadaoka, T.A. Jones and W. Göpel, J.Mat.Sci.Lett., 25, 1990, 3024-3028.

Photoemission Study of the Ba Core Levels in YBa2Cu3O7-x, Ch. Ziegler, G. Frank and W. Göpel, Z.Phys. B, 81, 1990, 349-353.

Sensor Arrays for Chemical Analysis of Vapors, W. Göpel, S. Vaihinger, J. Stetter, M. Findley and G.J. Maclay, Conf.Proc.Eurosensors III, Montreux (CH) (1989); Sensors and Actuators B, 1, 1990, 43-47.

Polaron-Induced Metallic Polypyrrole, P. Bätz, D. Schmeißer and W. Göpel, Sol.State Comm., 74, 1990, 461-464.

Fast NO2 Detection at Room Temperature with Optimized Lead Phthalocyanine Thin Film Structures, Y. Sadaoka, T.A. Jones and W. Göpel, Conf.Proc.Eurosensors III, Montreux (CH) (1989), Sensors and Actuators B, 1, 1990, 148-153.

Lead Phthalocyanine as a Mixed Conducting Oxygen Electrode, H.-D. Wiemhöfer, D. Schmeißer and W. Göpel, Conf.Proc.Solid State Ionics, Hakone (Japan) (1989); Sol.State Ion., 40/41, 1990, 421-427.

HREELS-Studies of Selectively Deuterated Cadmium-Stearate Langmuir-Blodgett Films, M. Schreck, M. Abraham, W. Göpel and H. Schier, Surf.Sci.Lett., 237, 1990, 405-410.

Surface Spectroscopic Studies on Pd-Doped SnO2, J.F. Geiger, K.D. Schierbaum and W. Göpel, Vacuum, 41, 1990, 1629-1632.

Non-Superconducting and Rendered Superconducting YBa2Cu3O7-x: An In-Situ Photoemission Study, B. Dauth, P. Sen, B. Rupp, W. Gudat, Ch. Ziegler and W. Göpel, Z.Phys.B, 79, 1990, 169-172.

Leaching of Dimethylferrocene, a Redox Mediator in Amperometric Enzyme Electrodes, W. Schuhmann, H. Wohlschläger, R. Lammert, H.L. Schmidt, U. Löffler, H.-D. Wiemhöfer and W. Göpel, Conf.Proc.Eurosensors III, Montreux (CH) (1989); Sensors and Actuators B, 1, 1990, 571-575.

Low and High Temperature TiO2 Oxygen Sensors, U. Kirner, K.D. Schierbaum, W. Göpel, B. Leibold, N. Nicoloso, W. Weppner, D. Fischer and W.F. Chu, , Conf.Proc.Eurosensors III, Montreux (CH) (1989); Sensors and Actuators B, 1, 1990, 103-107.

Annealing Effects on Lead-Phthalocyanine Thin Film as a Toxic Gas Sensor, Y. Sadaoka, W. Göpel, B. Suhr and A. Rager, J.Mat.Sci.Lett., 9, 1990, 1481-1483.

Characterization of Gas-Sensitive Lead-Phthalocyanine Film Surfaces by X-Ray Photoelectron Spectroscopy, H. Mockert, K. Graf, D. Schmeißer, W. Göpel, Z.A. Ahmad, P.B.M. Archer, A.V. Chadwick and J.D. Wrigh, Sensors and Actuators B, 2, 1990, 133-141.

Preparation and Spectroscopic Characterization of a Thin Polymer Film on Silicon in UHV: 2,5 Distyrylpyrazine, M. Abraham, S. Lach, A. Dominik, R. Lege, K. Rauer, V. Hoffmann, D. Oelkrug and W. Göpel, Conf.Proc.Intern.Conf.Polymer Solid Interf., Namur (B), 1991, 45-57.

Kinetics of Oxygen Interaction with Pt/CeO2 Sensors: Application of a New Pressure Modulation Spectroscopy, A. Dubbe, H.-D. Wiemhöfer, K.D. Schierbaum and W. Göpel, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 23-28.

Chemical Sensor Technologies: Empirical Art and Systematic Research, W. Göpel, Sensors: A Comprehensive Survey, W. Göpel, J. Hesse and J.N. Zemel (Eds.), VCH, Vol. 2: 'C, 1991, 61-118, Weinheim (FRG), 3-527-26768-9.

Interface-Reactions of Pt/TiO2: Comparative Electrical, XPS-, and AES-Depth Profile Investigations, U. Kirner, K.D. Schierbaum and W. Göpel, Conf. Proc. Angew.Oberflächenanalytik, Kaiserslautern (FRG) (1990); Fres.Z.Analyt.Chem., 341, 1991, 416-420.

Charge-Induced Delocalisation in the ?-System of DCNQI, A. Gonzales, D. Schmeißer, J. Taborski, V. Wüstenhagen, E. Umbach, J.U. v. Schütz, H.C. Wolf and W., Conf.Proc.ICSM, Tübingen (FRG) (1990); Synth.Met., 41-43, 1991, 1809-1813.

Electronic Conductance and Capacitance Sensors, W. Göpel and K.D. Schierbaum, Sensors: A Comprehensive Survey, W. Göpel, J. Hesse and J.N. Zemel (Eds.), VCH, Vol. 2: 'C, 1991, 429-466, Weinheim (FRG), 3-527-26768-9.

Recent Trends in the Development of Chemical Sensors: Controlled Interface Physics, W. Göpel, Conf.Proc.of RSEF XXIII Meeting, Valladolid (E), 1991, 85-108.

Interaction of Pd-overlayers with SnO2: Comparative XPS, SIMS, and SNMS Studies, J.F. Geiger, K.D. Schierbaum and W. Göpel, Conf.Proc.Angew.Oberflächenanalytik, Kaiserslautern (FRG) (1990); Fres.Z.Analyt.Chem., 341, 1991, 25-30.

Phthalocyanines as Prototype Materials for Chemical Sensors and Molecular Electronic Devices, W. Göpel, Conf.Proc.ICSM, Tübingen (FRG) (1990); Synth.Met., 41-43, 1991, 1087-1093.

Effect of Crystal Form on the Conductance in Oxidative Gases of Metal-free and some Metal Phthalocyanines, Y. Sadaoka, M. Matsuguchi, Y. Sakai, Y. Mori and W. Göpel, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 495-498.

Electronic Structure of Lu(Pc)2 studied by Photoelectron Spectroscopy, J. Bufler, M. Abraham, M. Bouvet, J. Simon and W. Göpel, J.Chem.Phys., 95, 1991, 8459-8466.

Electronic Structure of Polypyrrole Films, P. Bätz, D. Schmeißer and W. Göpel, Phys.Rev. B, 43, 1991, 9178-9189.

Entwicklungstrends in der chemischen Sensorik: Grenzflächentechnologien bis in den molekularen Bereich, W. Göpel, Das Handbuch der Ingenieure, K.W. Bonfig (Ed.), 1991, 5, 528, Ehningen (FRG), 3-8169-0686-9.

Mixed Valent Tungsten Oxides: New Electrode Materials for the Potentiometric Detection of Dissolved Oxygen at Temperatures below 35°C, H. Kohler and W. Göpel, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 345-354.

Fundamentals and Principles of Potentiometric Gas Sensors Based Upon Solid Electrolytes, H.-D. Wiemhöfer and W. Göpel, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 365-372.

Charge Transport and its Anisotropy of Pristine and Segmented new (CH)x, W. Pukacki, R. Zuzok, S. Roth and W. Göpel, Proc.of the Int.Winterschool on Electronic Prop.of Polymers:Orientation and Dimensionality of Conjug, 1991.

Detection of Halogenated and other Hydrocarbons in Air: Response Function of Catalyst/Electrochemical Sensor Systems, S. Vaihinger, W. Göpel, J.R. Stetter and G.J. Maclay, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 337-343.

Historical Remarks, W. Göpel, T.A. Jones, J.N. Zemel and T. Seiyama, Sensors: A Comprehensive Survey, W. Göpel, J. Hesse and J.N. Zemel (Eds.), VCH, Vol. 2: 'C, 1991, 29-59, Weinheim (FRG), 3-527-26768-9.

Interface Analysis for Solid State Electrochemical Devices and Chemical Sensors, "", H.-D. Wiemhöfer and W. Göpel, Conf.Proc.Angew.Oberflächenanalytik, Kaiserslautern (FRG) (1990); Fres.Z.Analyt.Chem., 341, 1991, 106-111.

Semiconducting and Metallic States in Conducting Organic Low-Dimensional Materials, D. Schmeißer, P. Bätz, W. Göpel, W. Jaegermann, Ch. Pettenkofer, H. Wachtel, A. Jimenez-Gonzales, J., Conf. Proc. Bunsentagung, Bochum (1991); Ber.Bunsenges.Phys.Chem., 95, 1991, 1441-1447.

Semiconductor to Metal Transition in the Ladder Type Polymer BBB, P. Bätz, D. Schmeißer, W. Göpel, I. Belaish and D. Davidov, Conf.Proc.ICSM, Tübingen (FRG) (1990); Synth.Met., 41-43, 1991, 1609-1613.

Multi-Component Analysis in Chemical Sensing, S. Vaihinger and W. Göpel, Sensors: A Comprehensive Survey, W. Göpel, J. Hesse and J.N. Zemel (Eds.), VCH, Vol. 2: 'C, 1991, 191-237, Weinheim (FRG), 3-527-26768-9.

Grenzflächenchemie in der Dünnschichttechnologie: Beispiele aus der Entwicklung chemischer Sensoren, K.D. Schierbaum and W. Göpel, VDI-Kolloquium 'Schichtkunde - Schnittstelle zwischen Verfahren und Anwendung', VDI-Verlag, 1991, 103-118, Düsseldorf (FRG).

Plasma Deposition of Thin Fluorocarbon Films for Increased Membrane Hemocompatibility, G. Clarotti, F. Schue, J. Sledz, K.E. Geckeler, W. Göpel and A. Orsetti, J.Membr.Sci., 61, 1991, 289.

Quartz Microbalance Sensor for Gas Detection, A. Birnstil, W. Göpel, B. Henning, R. Lucklum, K.D. Schierbaum, S. Vaihinger and F. Vögtle, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators A, 25-27, 1991, 705-710.

The Determination of Electron Transfer Parameters for Monosubstituted Ferrocenes suitable as Mediators in Amperometric Biosensors, "", U. Löffler, B. Speiser and W. Göpel, Electroanalysis, 3, 1991, 917-923.

Lead Phthalocyanine Thin Films for NO2-Sensors, C. Hamann, A. Mrwa, M. Müller, W. Göpel and A. Rager, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 73-78.

Miniaturized Electrochemical Sensors: A Status Report on Trends and New Technologies, W. Göpel, Conf.Proc.Int.Conf.on Electrochem.Analysis, Leipzig (FRG), 1991, 73.

Thermodesorption of Langmuir-Blodgett-Films Studied by Mass Spectrometry, M. Schreck, H. Schier and W. Göpel, Langmuir, 7, 1991, 2287-2292.

Conductance - combustible gas concentration dependence in SnO2 gas sensors, R. Ionescu, V. Vasilescu, A. Vancu, N. Bârsan, Revue Roumaine de Physique, 10 Tome 36, 1991, 885-891.

Chemische Sensoren, W. Göpel, Conf. Proc. 'Technologietrends in der Sensorik', VDI/VDE-Verlag, 1991, Düsseldorf (FRG).

Mixed Oxides for Low-Temperature Oxygen Sensors: Phase Characterization, Spectroscopic, and Electrical Investigations of (Zr1-x, Tix)0.82Y0.18O1.91, U. Vohrer, H.-D. Wiemhöfer, W. Göpel, F. Schilling and J. Arndt, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 411-416.

Chemical Sensing, Molecular Electronics, and Nanotechnology: Interface Technologies Down to the Molecular Scale, W. Göpel, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 7-21.

Interface Analysis for Solid State Electrochemistry, H.-D. Wiemhöfer, U. Vohrer and W. Göpel, Conf.Proc.Third Int.Symp.on Systems with Fast Ionic Transport, Holzhau (FRG) (1991); Mat.Sci.Forum, 76, 1991, 265-268.

Schottky-Barrier and Conductivity Gas Sensors Based Upon Pd/SnO2 and Pt/TiO2, K.D. Schierbaum, U. Kirner, J. Geiger and W. Göpel, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 87-94.

Definitions and Typical Examples, W. Göpel and K.D. Schierbaum, Sensors: A Comprehensive Survey, W. Göpel, J. Hesse and J.N. Zemel (Eds.), VCH, Vol. 2 'Ch, 1991, 1-27, Weinheim (FRG), 3-527-26768-9.

EPR Studies of Segmented Polyacetylene, A. Bartl, R. Zuzok, S. Roth and W. Göpel, Proc.of the Int.Winterschool on Electronic Prop of Polymers:Orientation and Dimensionality of Conjug, 1991.

Interface Analysis of the System Si/YBa2Cu3O7, Ch. Ziegler, F. Baudenbacher, P. Berberich, H. Kinder and W. Göpel, Conf.Proc.Angew.Oberflächenanalytik, Kaiserslautern (FRG) (1990); Fres.Z.Analyt.Chem., 341, 1991, 308-313.

Covalently Coupled Polymer-Semiconductor Interfaces: the Precursor 1,4 Phenylenediamine on Si(100), Th. Kugler, U. Thibaut, M. Abraham, G. Folkers and W. Göpel, Conf.Proc.Intern.Conf.Polymer Solid Interf., Namur (B), 1991, 37-43.

Step Structure Evolution on Electrostatic Neutral Zinc Oxide Vicinal Surfaces- Studied by Spot Profile Analysis-LEED, C. Kroll, M. Abraham and W. Göpel, Surf.Sci., 253, 1991, 157-166.

Specific Molecular Interactions and Detection Principles, W. Göpel and K.D. Schierbaum, Sensors: A Comprehensive Survey, W. Göpel, J. Hesse and J.N. Zemel (Eds.), VCH, Vol. 2: 'C, 1991, 119-157, Weinheim (FRG), 3-527-26768-9.

Metallic Density of States and 1-Dimensional Instabilities for (DCNQI)2Cu Salts, D. Schmeißer, U. Langohr, J.U. v. Schütz, H.C. Wolf and W. Göpel, Conf.Proc.ICSM, Tübingen (FRG) (1990); Synth.Met., 41-43, 1991, 1805-1808.

Chemical Sensors and Instrumentation in Analytical Chemistry, W. Göpel and M. Oehme, Sensors: A Comprehensive Survey, W. Göpel, J. Hesse and J.N. Zemel (Eds.), VCH, Vol. 3: 'C, 1991, 819-846, Weinheim (FRG), 3-527-26768-9.

Bleiphthalocyanin-Dünnschichten für NO2-Sensoren, C. Hamann, W. Göpel, A. Mrwa, M. Müller and A. Rager, Wiss.Zeitschrift, 33, 1991, 399-407.

Preparation and Spectroscopic Characterization of a Thin Polymer Film in UHV: 2,5-Distyrylpyrazine, M. Abraham, J. Dütting, M. Schreck, R. Lege, S. Reich, D. Oelkrug and W. Göpel, J.Chem.Phys., 94, 1991, 3235-3241.

Biosensors for Choline, Choline Esters, and Inhibitors of Choline Esterase, U. Wollenberger, U. Löffler, R. Gruss, W. Göpel and F. Scheller, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 257-260.

Surface Composition of Clean, Epitaxial Thin Films of YBa2Cu3O7-x from Quantitative XPS Analysis, G. Frank, Ch. Ziegler and W. Göpel, Phys.Rev. B, 43, 1991, 2828-2834.

Amperometric Biosensors: Characterization of Dispersed Mediator Systems, U. Löffler, H.-D. Wiemhöfer and W. Göpel, Conf.Proc.Biosensors, Singapore (Malaysia) (1990); Biosensors and Bioelectronics, 6, 1991, 343-352.

Selectivity Enhancement of Amperometric Gas Detection Cells: Linear Potential Sweep Voltammetry (LPSV), G. Ege, H. Kohler and W. Göpel, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 519-524.

Switching Effects in Metal Phthalocyanine Metal Sandwich Structures, D. Ottenbacher, K.D. Schierbaum and W. Göpel, J.Molecular Electronics, 7, 1991, 79-84.

Reduced Light Sensibility in Optimized Ta2O5-ISFET Structures, P. Gimmel, H.H. van den Vlekkert, K.D. Schierbaum, N.F. de Rooij and W. Göpel, Conf.Proc.Eurosensors IV, Karlsruhe (FRG) (1990); Sensors and Actuators B, 4, 1991, 135-140.

The General Temperature Dependence of the Fluctuation-Induced Tunnelling Current. Application to Naarmann-Polyacetylene, G. Paasch, R. Zuzok, W. Pukacki, S. Roth and W. Göpel, Proc.of the Int.Winterschool on Electronic Prop.of Polymers:Orientation and Dimensionality of Conjug, 1991.

Interface Properties of Thin YBa2Cu3O7-x-Films, Ch. Ziegler, G. Frank and W. Göpel, Conf. Proc. Bunsentagung, Bochum (1991); Ber.Bunsenges.Phys.Chem., 95, 1991, 1404-1409.

Role of Ionic Defects at Semiconductor/Insulator Interfaces: Spectroscopic Results on CaF2/InP(001) and SrF2/InP(001) Structures, W. Weiß, H.-D. Wiemhöfer and W. Göpel, Phys.Rev. B, 45, 1992, 8478-8489.

CO2-Monitoring with Solid State Electrolyte Devices Based upon Na2CO3/BaCO3, H.-D. Wiemhöfer, H. Keller, S. Brosda, U. Guth and W. Göpel, Proc Int.Symp.on Environmental Sensing, Berlin (FRG), 1992, 482.

Comparative Optical Reflection and Mass Spectrometry Analysis of Thermodesorption of Langmuir-Blodgett Films, P. Tippmann-Krayer, H. Möhwald, M. Schreck and W. Göpel, Thin Solid Films, 213, 1992, 136-142.

Oriented Structures of Lead Phthalocyanine Thin Films: Infrared Studies and Normal Coordinates of the Non-Planar Porphin Ring System, D. Christen, V. Hoffmann, A. Rager and W. Göpel, Thin Solid Films, 208, 1992, 284-289.

Entwicklungstrends bei elektrochemischen Sensoren, W. Göpel, Conf. Proc. 30. Tutzing-Symposion der DECHEMA: 'Elektrochemische Sensorik: Neues aus Forschung und A, VCH, Vol. 126, 1992, 3-31, Weinheim (FRG), 3-527-10220-5.

Controlled Selectivity of Polysiloxane Coatings: Their Use in Capacitance Sensors, M. Haug, K.D. Schierbaum, H.-E. Endres, S. Drost and W. Göpel, Conf.Proc.Eurosensors V, Rome (I) (1991); Sensors and Actuators A, 32, 1992, 326-332.

Surface Morphology of Epitaxial CaF2- and SrF2-Layers Grown onto InP(001) Studied by Atomic Force Microscopy and Low Energy Electron Diffraction, W. Weiß, K. Kasper, K.H. Herrmann, D. Schmeißer and W. Göpel, Surf.Sci., 268, 1992, 319-324.

Low Temperature Sintering of YBa2Cu3Oy Ceramics by Silver Compounds and Silver Ionic Conduction, Y. Matsumoto, Y. Yamaguchi, J. Hombo, Th. Hauber and W. Göpel, J.Solid State Chem., 98, 1992, 201-205.

Catalysis of the Oxygen Reduction on W18O49-Electrodes by OH--induced Surface States, H. Kohler and W. Göpel, J.Electrochem.Soc., 139, 1992, 3035-3042.

Chemische Sensorik und Nanotechnologie: Forschung und Entwicklungstrends, W. Göpel, Conf.Proc.'Technologietrends in der Sensorik', VDI/VDE-Verlag, 1992, 1-114, München (FRG).

Zeta Potential Measurements of Ta2O5 and SiO2 Thin Films, L. Bousse, S. Mostarshed, B. van der Schoot, N.F. de Rooij, P. Gimmel and W. Göpel, J.Colloid Interf.Sci., 147, 1992, 22.

Selective Detection of Organic Molecules with Polymers and Supramolecular Compounds: Application of Capacitance, Quartz Microbalance, and Calorimetric Transducers, K.D. Schierbaum, A. Gerlach, M. Haug and W. Göpel, Conf.Proc.Eurosensors V, Rome (I) (1991); Sensors and Actuators A, 31, 1992, 130-137.

Surface Analysis of Poly(vinylidene difluoride) Membranes, D. Flösch, H.-D. Lehmann, R. Reichl, O. Inacker and W. Göpel, J.Membr.Sci., 70, 1992, 53-63.

Maskless Excimer Laser Induced Projection Patterning of InP in Cl2 Etch Gas, R. Heydel, R. Matz and W. Göpel, Conf.Proc.EMRS, Straßburg (F), 1992.

Phisiko-chimicheskie svoistva kobaltita lantana legirovannogo svinzom (Physico-chemical properties of lanthanum cobaltate doped with Pb), V.Kharton, P.Zuk, A.Vecher, V.Astashko, A.Gurlo, Vestnik BGU. Khimia (in russian), 1, 1992, 19-23.

Interaction of Slow Electrons with Organic Solids: Comparative HREELS and IR-Studies on Selectively Deuterated Molecules, M. Schreck, M. Abraham, A. Lehmann, H. Schier and W. Göpel, Surf.Sci., 262, 1992, 128-140.

Nitrogen Dioxide Thin Film Gas Sensors for Environmental Control, K.D. Schierbaum, H.-D. Wiemhöfer and W. Göpel, Proc.Int.Symp.on Environmental Sensing, Berlin (FRG), 1992, 346.

Interface Engineering of Molecular Materials, W. Göpel, Nanostructures based on Molecular Materials, W. Göpel and Ch. Ziegler (Eds.), VCH, 1992, 349-377, Weinheim (FRG), 3-527-28416-8.

Developing Biosensors with pH-ISFET-Transducers Utilizing Lipid-Bilayer Membranes with Transport-Proteins, D. Ottenbacher, R. Kindervater, P. Gimmel, W. Göpel, B. Klee and F. Jähnig, Conf.Proc.Eurosensors V, Rome (I) (1991); Sensors and Actuators B, 6, 1992, 192-196.

Chemically Modified Semiconductor Surfaces: 1,4-Phenylenediamine on Si(100), Th. Kugler, U. Thibaut, M. Abraham, G. Folkers and W. Göpel, Surf.Sci., 260, 1992, 64-74.

Biosensors Based on Receptors: Electrical Transducer Principles, R. Kindervater, W. Göpel, D. Ottenbacher and M. Knichel, GBF Monographs, VCH, Vol. 17, 1992, 178-186, Weinheim (FRG).

Characterization of Plasma-treated Polyhydroxybutyrate Membrane Surfaces by ESCA and Contact Angle Measurements, D. Flösch, G. Clarotti, K.E. Geckeler, F. Schue and W. Göpel, Conf.Proc.Progress in Membrane Science and Technology, Twente (NL) (1991); J.Membr.Sci., 73, 1992, 163-172.

Passivation Layers on YBa2Cu3O7-x Thin Films, Ch. Ziegler, G. Frank and W. Göpel, 'High Tc Superconductor Thin Films', Conf.Proc.ICAM 1991 Straßburg (F), L. Correra (Ed.), 1992, 707-713, North-Holland, Amsterdam (NL).

Electronic Properties of Ion-implanted Yttria-stabilized Zirconia, U. Vohrer, H.-D. Wiemhöfer, W. Göpel, B.A. von Hassel and A.J. Burggraaf, Sol.State Ion., 59, 1993, 141-149.

Electrodes for Oxygen Sensors based on Rare Earth Manganites or Cobaltites, P. Shuk, A. Vecher, V. Kharton, H.-D. Wiemhöfer, U. Guth and W. Göpel, Sensors and Actuators B, 15-16, 1993, 401-405.

Direct Observation of Coulomb Interactions in Highly Conducting [2,5-DMe-DCNQI]2Ag, D. Schmeißer, W. Göpel, H. Fuchs, K. Graf and P. Erk, Phys.Rev. B, 48, 1993, 4891-4894.

Fundamentals of Catalytic Sensors, W. Göpel, Proc.Europ.Conf.Series on Catalysis, Schwab-Symposium, Berlin-Spandau, 1993.

Additional Permselective Membranes Removing Buffer Concentration Influence on the ENFETs Response, A.A. Shulga, A.P. Soldatkin, V.I. Strikka, A.V. El'Skaya, H. Maupas, C. Martelet and W. Göpel, Conf.Proc.Eurosensors VII, Budapest (H), 1993.

Measurement of Sound Pressure via Temperature Fluctuations by a Cold-wire Microprobe at High Temperatures, A. Dubbe and W. Göpel, Rev.Sci.Instrum., 64, 1993, 3219-3228.

A Prototype Biosensor based on Transport Proteins: Electrical Transducers Applied to Lactose Permease, D. Ottenbacher, F. Jähnig and W. Göpel, Conf.Proc.4th Int.Meeting on Chemical Sensors, Tokyo (J) (1992); Sensors and Actuators B, 13-14, 1993, 173-175.

Doping and Stability of Ultrapure ?-Oligothiophene Thin Films, D. Oeter, Ch. Ziegler and W. Göpel, Conf.Proc.E-MRS Spring Meeting, Straßburg (F) (1993); Synth.Met., 61, 1993, 147-150.

Monoalkylferrocene-Mediated Amperometric Enzyme Electrodes for Glucose Determination, V. Razumas, J. Kulys, M. Knichel, H.-D. Wiemhöfer and W. Göpel, Electroanalysis, 5, 1993, 399-404.

Schottky Barriers and Ohmic Contacts with Pt/TiO2(110): Implications to Control Gas Sensor and Catalytic Properties, K.D. Schierbaum, X. Wei-Xing, S. Fischer and W. Göpel, 'Adsorption on Ordered Surfaces of Ionic Solids and Thin Films' and WEH Symposium 'Oxides', Bad Honn, H.-J. Freund and E. Umbach (Eds.), Springer, 1993, 268-278, Berlin (FRG), 3-540-57416-6.

The mechanism of interaction between CO and SnO2 surface - the role of water vapour, N. Bârsan, R. Ionescu, Sensors and Actuators B, 12 1, 1993, 71-75.

Undoped and Doped Oligothiophenes: an In-Situ XPS-, UPS-, and HREELS-Study, D. Oeter, Ch. Ziegler, H. Naarmann and W. Göpel, Conf.Proc.In Situ Investigations of Physico-chemical Processes at Interfaces, Bunsen Discussion Meet, 97, 1993, 448-451.

Functional Polymers and Supramolecular Compounds for Chemical Sensors, K.D. Schierbaum and W. Göpel, Conf.Proc.E-MRS Spring Meeting, Straßburg (F) (1993); Synth.Met., 61, 1993, 37-45.

The 2-Dimensional Structure of Polypyrrole Films, D. Schmeißer, H. Naarmann and W. Göpel, Synth.Met., 59, 1993, 211-221.

Sensoren und Physikalische Chemie, W. Göpel, Nachr.Chem.Technik Lab., 41, 1993, 332-336.

CO2-Gassensoren: Grenzflächencharakterisierung und Sensortests, H.-D. Wiemhöfer, U. Vohrer, Th. Lang, S. Brosda, A. Dubbe, J. Fleig, A. Hierlemann, H. Keller and W., Conf.Proc.Sensor 93,Nürnberg (FRG), 6, 1993, 73-80.

New Materials for Gas Sensors, W. Göpel, Conf.Proc.Transducers 92 (invited plenary talk), Yokohama (J), 1993, 14-16.

Elektrodenkinetik, Transportgrößen und Grenzflächeneigenschaften von Kathodenmaterialien für Hochtemperaturbrennstoffzellen, H.-D. Wiemhöfer, G. Reinhardt, U. Vohrer and W. Göpel, Conf. Proc. Jahrestagung GDCh-Fachgruppe Angew.Elektrochemie, Straßburg (F), (10/1992), DECHEMA Mono, VCH, Vol. 128, 1993, 87-101, Weinheim (FRG), 3-527-10222-1.

Characterization of the Performance and Long-term Stability of Thin-Film Conductometric Transducers for Enzyme-based Biosensors, A.A. Shulga, V.I. Strikka, S.V. Dzyadevich, S.V. Patskovsky and W. Göpel, Conf.Proc.Eurosensors VII, Budapest (H), 1993.

Step-Induced Deconstruction and Step-Height Evolution at the Au(110) Surface, U. Romahn, P. von Blanckenhagen, C. Kroll and W. Göpel, Phys.Rev. B, 47, 1993, 12840-1285.

Conductivity Measurements of (GaPcF)n and (AlPcF)n Thin Films: Influence of Gas Exposure and Structural Disorder, D. Martin, R. Elliott-Martin, Ch. Ziegler, M. Willis and W. Göpel, Conf.Proc.E-MRS Spring Meeting, Straßburg (F) (1993); Synth.Met., 61, 1993, 121-125.

Solid/Gas Interactions of Surface-doped Oxides: C-V, I-V, XPS, UPS, ELS Studies on Pt/TiO2, Pd/SnO2(110), K.D. Schierbaum, X. Wei-Xing and W. Göpel, Conf.Proc.In Situ Investigations of Physico-chemical Processes at Interfaces, Bunsen Discussion Meet, 97, 1993, 363-368.

Modifications in the Microscopic Structure of (Ru,Pb)-Phthalocyanine Films by Intermolecular Interactions, D. Schmeißer, M. Pohmer, M. Hanack and W. Göpel, Conf.Proc.E-MRS Spring Meeting, Straßburg (F) (1993); Synth.Met., 61, 1993, 115-120.

Electronic Structure and Electrical Properties of Monomeric LuPc2 and Polymeric (PcGaF)n Phthalocyanines, Ch. Ziegler, J. Bufler, D. Martin and W. Göpel, Conf.Proc.ICSM, Göteborg (S) (1992); Synth.Met., 55-57, 1993, 91-96.

Trends bei der Entwicklung von Gas-Sensoren und Sensorarrays, W. Göpel and S. Vaihinger, Sensoren und Mikroelektronik, 1993, 557-587, Ehningen (FRG).

Possibilities Offered by Plasma Modification and Polymerization to Enhance the Biocompatibility and Hemocompatibility of Polyester Membranes, F. Schue, G. Clarotti, J. Sledz, A. Mas, K.E. Geckeler, W. Göpel and A. Orsetti, Makromol.Chemie,Macromol.Symp., 73, 1993, 217.

Surface Spectroscopy on Bi2O3-Based Solid Electrolytes, P. Shuk, H.-D. Wiemhöfer and W. Göpel, Conf. Proc. SSI-9, Hague (NL), 1993.

Mikroionik in der chemischen Sensorik, W. Göpel, Conf.Proc.Sensor 93,Nürnberg (FRG), 6, 1993, 97-105.

Chemical Sensors Based upon Polysiloxane: Comparison between Optical, Quartz Microbalance, Calorimetric, and Capacitance Sensors, K.D. Schierbaum, M. Haug, W. Nahm, G. Gauglitz and W. Göpel, Conf.Proc.1stEurop.Conf.Opt.Chem.Sensors and Biosensors, Graz (A) (1992); Sensors and Actuators B, 11, 1993, 383-391.

Sensors in Europe and Eurosensors: State of the Art and the Science in 1992, W. Göpel, Conf.Proc.Eurosensors VI, San Sebastian (E) (1992); Sensors and Actuators A, 37-38, 1993, 1-5.

Doping Effects in Thin Films of Radicalar Phthalocyanines: XPS, UPS, HREELS, and Conductivity Studies, J. Bufler, Ch. Ziegler and W. Göpel, Conf.Proc. E-MRS Spring Meeting, Straßburg (F) (1993); Synth.Met., 61, 1993, 127-131.

Chemically Modified Semiconductor Surfaces: 2,6-Dimethylisocyanobenzene on Si(100)(2x1), Th. Kugler, Ch. Ziegler and W. Göpel, Conf.Proc.of EUCMOS, Wien (A) (1992); J.Mol.Structure, 293, 1993, 257-260.

ESR Studies of Polypyrrole Films with 2-dimensional Microstructure, A. Bartl, L. Dunsch, D. Schmeißer, W. Göpel and H. Naarmann, Conf.Proc.E-MRS Spring Meeting, Straßburg (F) (1993); Synth.Met., 61, 1993, 167-170.

Controlled Modification of Poly(hydroxybutyrate) Surfaces by a Perfluorohexane Plasma: ESCA and Contact Angle Studies, D. Flösch, G. Clarotti, K.E. Geckeler and W. Göpel, J.Polym.Sci. A, 31, 1993, 1779-1788.

In-Situ Investigations of the Conduction Mechanisms in Low-dimensional Organic Semiconductors and Metals, D. Schmeißer and W. Göpel, Conf.Proc.In Situ Investigations of Physico-chemical Processes at Interfaces, Bunsen Discussion Meet, 97, 1993, 372-378.

In situ Fabrication of InP-based Optical Waveguides by Excimer Laser Projection, R. Matz, R. Heydel and W. Göpel, Appl.Phys.Lett., 63, 1993, 1137-1139.

NOx-Sensitivity of Monomeric and Polymeric N-Macrocyclic Compounds, R. Zhou, M. Haug, K.E. Geckeler and W. Göpel, Conf.Proc.Eurosensors VI, San Sebastian (E) (1992); Sensors and Actuators B, 15-16, 1993, 312-316.

A New LB Film Forming Molecule Containing Both an Electro- and Photoactive Part, M. Burghard, M. Schmelzer, S. Roth and W. Göpel, Conf.Proc.UPS 6 (1994); Mol.Cryst.Liq.Cryst., 252, 1994, 39-47.

New Materials and Transducers for Chemical Sensors, W. Göpel, Conf.Proc.Eurosensors VII, Budapest (H) (1993); Sensors and Actuators B, 18-19, 1994, 1-21.

An Electronic Nose for Measuring Airbourne Organic Compounds, J.W. Gardner, N. Bartlett and W. Göpel, Conf.Proc.24th Int.Conf.on Environmental Systems and 5th European Symp.on Space Environmental Contro, 1994, 1-6, 0148-7191.

Spectroscopic and Electrical Investigations of Undoped and Doped ?-Oligothiophene Thin Films, D. Oeter, Ch. Ziegler, W. Göpel and H. Naarmann, Conf.Proc.EMRS Spring Meeting, Straßburg (F) (1994); Synth.Met., 67, 1994, 267-271.

Mustererkennung mit dynamischen Signalen chemischer Gassensoren, W. Göpel, M. Schweizer-Berberich and S. Vaihinger, PTB-Berichte F-12, Schwerpunktprogramm Sensorsysteme (Conf.Proc.DFG Final Seminar Sensorsysteme 92,, H. Kunzmann (Ed.), 1994, 32-49, Braunschweig (FRG), 3-89429-454-X.

Characterization of Food Freshness with Sensor Arrays, M. Schweizer-Berberich, S. Vaihinger and W. Göpel, Conf.Proc.Eurosensors VII, Budapest (H) (1993); Sensors and Actuators B, 18-19, 1994, 282-290.

SnO2 based gas sensors as chromatographic detectors, N. Bârsan, R. Ionescu, Sensors and Actuators B, 19 vol 1-3, 1994, 470-473.

Soluble Polystyrene Derivatives of Metal bis(3,4-dicarboxybenzoyl)phthalocyaninates: Synthesis, Thermal Analysis, and Sensitivity towards Toxic Gases, R. Zhou, L. Tang, K.E. Geckeler and W. Göpel, Macromol.Chem.Phys., 195, 1994, 2409-2421.

Optimized Biosensor for Whole Blood Measurements Using a new Blood-compatible Membrane, S. Eisele, R. Kindervater, A. Gröbe, H.P.T. Ammon and W. Göpel, Conf.Proc.Biosensors, Genf (CH) (1992); Biosensors and Bioelectronics, 9, 1994, 119-124.

Surface and Bulk Interactions of Organic Molecules with Calixarene Layers, K.D. Schierbaum, A. Gerlach, W. Göpel, W.M. Müller, F. Vögtle, A. Dominik and H.J. Roth, Fres.Z.Analyt.Chem., 349, 1994, 372-379.

Controlled Signal Transduction Across Interfaces of Intelligent Molecular Systems, W. Göpel, Conf.Proc.2nd European Workshop on Bioelectronics, Frankfurt (FRG) (1993); Biosensors and Bioelectro, 10, 1994, 35-59.

Geometric and Electronic Structure of BBB, a Combined STM/XPS/UPS Study, A.W. Munz, P. Bätz, D. Schmeißer and W. Göpel, Chem.Mat., 6, 1994, 2288.

Highly Ordered Ultra-thin ?5-Thiophene Films on SiO2 and Si(100)+O(N2O), O. Böhme, Ch. Ziegler and W. Göpel, Conf.Proc.EMRS Spring Meeting, Straßburg (F) (1994); Synth.Met., 67, 1994, 87-92.

Chemische Sensoren - technische Sinnesorgane für Riechen und Schmecken, W. Göpel, Spektrum, 1, 1994, 97-100.

Perchlorethylene Detection in Air: a Comparative Study using Polymer Sensor Elements, Catalyst/Sensor Systems, K.D. Schierbaum, S. Vaihinger, M. Haug and W. Göpel, Proc.Int.Symp.on Environmental Sensing, Berlin (FRG) (1992) 288; W. Göpel and K.D. Schierbaum, Praxi, 1994, 36-42.

Structure-conductivity Relation for Polypyrrole with a Two-dimensional Microscopic Structure, G. Paasch, D. Schmeißer, A. Bartl, H. Naarmann, L. Dunsch and W. Göpel, Synth.Met., 66, 1994, 135-142.

Reliable CO2 Sensors Based with Silicon-based Polymers on Quartz Microbalance Transducers, R. Zhou, S. Vaihinger, K.E. Geckeler and W. Göpel, Conf.Proc.Eurosensors VII, Budapest (H) (1993); Sensors and Actuators B, 18-19, 1994, 415-420.

Impedance Spectroscopy and Scanning Tunneling Microscopy of Polished and Electrochemically Pretreated Glassy Carbon, P. Heiduschka, A.W. Munz and W. Göpel, Electrochimica Acta, 39, 1994, 2207-2223.

X-ray Photoelectron Spectroscopy of KrF Laser-irradiated Polycarbonate Films, P. Lemoine, K. Cazzini, I.T. Mc Govern, W.J. Blau, P. Bätz, Ch. Ziegler and W. Göpel, Chem.Phys.Lett., 220, 1994, 177-180.

Supramolecular Complexes Based on Calixarenes: Force Field Calculations and Applications for Chemical Sensors, A. Dominik, H.J. Roth, K.D. Schierbaum and W. Göpel, Supramol.Sci., 1, 1994, 11-19.

Calibration curve for SnO2 based gas sensors, N. Bârsan, R. Ionescu, A. Vancu, Sensors and Actuators B, 19 vol 1-3, 1994, 466-469.

Organized Metal/Organic Film/Metal Heterostructures: A Way towards Molecular Electronic Devices?, M. Schmelzer, M. Burghard, C.M. Fischer, P. Bäuerle, H. Schier, S. Roth and W. Göpel, Conf.Proc.EMRS Spring Meeting, Straßburg (F) (1994); Synth.Met., 67, 1994, 281-286.

Oriented Growth of Quinquethiophene on SiO2 - An Atomic Force Microscopy Study, O. Böhme, Ch. Ziegler and W. Göpel, Adv.Mat., 6, 1994, 587-590.

Molecular Recognition with Self-assembled Monolayers of Supramolecular Compounds, K.D. Schierbaum, T. Weiß, U. Thoden van Velzen, D.N. Reinhoudt and W. Göpel, Science, 265, 1994, 1413-1415.

Introduction to Bioelectronics: Interfacing Biology with Electronics, W. Göpel and P. Heiduschka, Conf.Proc.2nd European Workshop on Bioelectronics, Frankfurt (FRG) (1993); Biosensors and Bioelectro, 9, 1994, iii-xiii.

Interface Properties of Silver Electrodes on 2-dimensional Polypyrrole Films, Th. Hauber, D. Schmeißer, H. Naarmann and W. Göpel, Conf.Proc.EMRS Spring Meeting, Straßburg (F) (1994); Synth.Met., 67, 1994, 109.

Modified Polymers for Reliable Detection of Organic Solvents: Thermodynamically Controlled Selectivities and Sensitivities, K.D. Schierbaum, R. Zhou, A. Hierlemann and W. Göpel, Conf.Proc.Eurosensors VII, Budapest (H) (1993); Sensors and Actuators B, 18-19, 1994, 448-452.

Frequency Response Method for Study of the Kinetic Behaviour of Nernstian Solid Electrolyte Gas Sensors by Pressure Modulation, A. Dubbe, H.-D. Wiemhöfer and W. Göpel, J.Electroanalyt.Chem., 371, 1994, 43-51.

Conduction models in gas-sensing SnO2 layers - grain size effect and ambient atmosphere influence, N. Bârsan, Sensors and Actuators B 17, 1994, 241-246.

Electronic Transitions in ?-Oligothiophene Thin Films: Comparison of UV/VIS and HREELS Investigations, D. Oeter, H.-J. Egelhaaf, Ch. Ziegler, D. Oelkrug and W. Göpel, J.Chem.Phys., 101, 1994, 6344-6352.

Microstructure and Response Behaviour of Electrodes for CO2 Gas Sensors Based on Solid Electrolytes, A. Dubbe, H.-D. Wiemhöfer, Y. Sadaoka and W. Göpel, Conf.Proc.5th Int.Meeting on Chemical Sensors, Rome (I) (1994); Sensors and Actuators B, 24-25, 1995, 600-602.

Thermal Etching Defect Structures on Si(001): A Comparative Study with High-Resolution Low-Energy Electron Diffraction and Scanning Tunneling Microscopy, A.W. Munz, W. Weiß and W. Göpel, J.Phys. D, 7, 1995, 5313-5326.

Interface Analysis in Biosensor Design, W. Göpel and P. Heiduschka, Conf.Proc.Biosensors 94, New Orleans (USA) (1994); Conf.Proc.Artificial Biosensing Interfaces, Athen, 10, 1995, 853-883.

Polymer Coated Capacitive Microintegrated Sensor, F.-P. Steiner, A. Hierlemann, C. Cornila, G. Noetzel, M. Bächtold, J.G. Korvink, W. Göpel and H. Bal, Conf.Proc.Eurosensors IX, Stockholm (S), Vol. 2, 1995, 814-817.

Selective Chemical Sensing: Molecular Recognition with Cage Compounds and Polymeric Permselective Layers, K.D. Schierbaum and W. Göpel, Polymer Films and Sensor Technologies, Technomic, G. Harsányi (Ed.), 1995, 149-172, Lancester (USA), 1-56676-201-4.

SnO2-Gassensoren in Dünnschichttechnologie, K. Steiner, Y. Bubnov and W. Göpel, Technisches Messen, 62, 1995, 145-151.

Perylene Derivative Langmuir-Blodgett Films for Use as Ultrathin Charge Transport Barriers, M. Burghard, C. Fischer, M. Schmelzer, S. Roth, M. Hanack and W. Göpel, Chem.Mat., 7, 1995, 2104-2109.

Chemical Sensors for Cars in the Future, W. Göpel, Conf.Proc.European School on Chemical Sensors, Barcelona (E), 1995.

Electrodeposited GOD/BSA Electrodes: Ellipsometric Study and Glucose Sensing Behaviour, D.M. Ihm, D.H. Jang, S.M. Oh, Ch. Striebel, H.-D. Wiemhöfer, G. Gauglitz and W. Göpel, Conf.Proc.5th Int.Meeting on Chemical Sensors, Rome (I) (1994); Sensors and Actuators B, 24-25, 1995, 149-155.

Material Science for Future (Bio-)chemical Microsystems: The Key Role of Tailoring Interfaces, W. Göpel, Micro Total Analysis Systems, A. van den Berg and P. Bergveld (Eds.), 1995, 85-93, Kluwer, Dordrecht (NL), 0-7923-3217-2.

Wie menschlich sind elektronische Nasen?, M. Schweizer-Berberich, A. Harsch and W. Göpel, Technisches Messen, 62, 1995, 237-249.

SnO2 Sensors: Current Status and Future Prospects, W. Göpel and K.D. Schierbaum, Conf.Proc.Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 26-27, 1995, 1-12.

The Electronic Structure of CeO2 Thin Films: The Influence of Rh Surface Dopants, A. Pfau, K.D. Schierbaum and W. Göpel, Conf.Proc. ECOSS-14, Leipzig (FRG) (1994); Surf.Sci., 331, 1995, 1479-1485.

The Interaction of Transition Metal Phthalocyanines with Organic Molecules: a Quartz-Microbalance Study, K.D. Schierbaum, R. Zhou, S. Knecht, R. Dieing, M. Hanack and W. Göpel, Conf.Proc.5th Int.Meeting on Chemical Sensors, Rome (I) (1994); Sensors and Actuators B, 24-25, 1995, 69-71.

Separation of Electrode Reactions in Multi-Electrode Amperometric Sensors, S.I. Somov, G. Reinhardt, U. Guth, U. Schönauer and W. Göpel, Conf.Proc.Euroconference on Solid State Ionics, Funchal (P) (1995); Ionics, 1, 1995, 514-520.

A New Method for On-Vehicle Detection of Catalyst Malfunction Based Upon Measurement of Non-Equilibrated Gas Mixtures, P.G. Eastwood, S. Fischer, M. Schweizer, G. Girardi and W. Göpel, Conf.Proc.5th Int.Meeting on Chemical Sensors, Rome (I) (1994); Sensors and Actuators B, 24-25, 1995, 665-669.

The Geometric Structure of Intrinsic Defects at TiO2(110) Surfaces: An STM Study, S. Fischer, A.W. Munz, K.D. Schierbaum and W. Göpel, Surf.Sci., 337, 1995, 17-30.

HREELS to Identify Electronic Structures of Organic Films, D. Oeter, Ch. Ziegler and W. Göpel, Conf.Proc.AOFA 8, Kaiserslautern (FRG) (1994); Fres.Z.Analyt.Chem., 351, 1995, 360-363.

Electrode Reactions of La0.8Sr0.2MnO3-d-Electrodes on Stabilized Zirconia with Oxygen and the Nitrogen Oxides NO and NO2, G. Reinhardt, H.-D. Wiemhöfer and W. Göpel, Conf.Proc.1st Euroconf.on Solid State Ionics, Zakynthos (GR) (1994); Ionics, 1, 1995, 32-39.

Application of Artificial Neural Networks in Chemical Sensing: Analysis of Hydrocarbon Vapours with Optical and Mass Sensitive Transducers, G. Kraus, A. Hierlemann, W. Göpel and G. Gauglitz, Conf.Proc.9.CIS-Workshop: Softwareentwicklung in der Chemie, Jahrestagung GDCh, Bitterfeld (FRG), 1995.

In-Situ Photoelectron-Spectroscopy of Oxygen Electrodes on Stabilised Zirconia, W. Zipprich, H.-D. Wiemhöfer, U. Vohrer and W. Göpel, Conf.Proc.Bunsentagung, Bremen (FRG) (1995); Ber.Bunsenges.Phys.Chem., 99, 1995, 1406-1413.

HREELS and UV/VIS Spectroscopic Studies on the Electronic Structure of Oligothiophene Thin Films, H.-J. Egelhaaf, D. Oeter, Ch. Ziegler, D. Oelkrug and W. Göpel, Conf.Proc.EUCMOS 94, Essen (FRG) (1994); J.Mol.Struct., 348, 1995, 405-408.

Sensors and 'Smart' Molecular Nanostructures: Components for Future Information Technologies, W. Göpel, Sensors: A Comprehensive Survey, W. Göpel, J. Hesse and J.N. Zemel (Eds.), VCH, Vol. 8: 'T, 1995, 295-336, Weinheim (FRG), 3-527-26774-3.

Chemosensoren mit elektrischen Transducern, W. Göpel, Technisches Messen, 62, 1995, 186-197.

Self-assembled Monolayers of Supramolecular Compounds for Chemical Sensors, T. Weiß, K.D. Schierbaum, U. Thoden van Velzen, D.N. Reinhoudt and W. Göpel, Conf.Proc.Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 26-27, 1995, 203-207.

Pattern Recognition and Multicomponent Analysis in Chemical Sensing, W. Göpel, Conf.Proc.Int.Symp.on Olfaction and Electronic Nose, Toulouse (F) (1995); Conf. Proc. 2nd European W, 1995.

Basic Principles and New Trends in the Development of Chemical Sensors for Domestic Applications, W. Göpel, 'Sensors for Domestic Applications' and Proc. of the European School on Sensors, Castro Marina (I) 9, A. D'Amico and G. Sberveglieri (Eds.), World Scientific, 1995, 49, Singapore, 981-02-2246-7.

Detection of Organic Solvents with Reliable Chemical Sensors Based on Cellulose Derivatives, R. Zhou, A. Hierlemann, K.D. Schierbaum, K.E. Geckeler and W. Göpel, Conf.Proc.5th Int.Meeting on Chemical Sensors, Rome (I) (1994); Sensors and Actuators B, 24-25, 1995, 443-447.

Microfabrication and Characterization of Microelectrode Arrays for In Vivo Nerve Signal Recording, E. Valderrama, P. Garrido, E. Cabruja, P. Heiduschka, A. Harsch and W. Göpel, Conf.Proc.Eurosensors IX, Stockholm (S), Vol. 1, 1995, 63-66.

Elektrochemische Sensoren und Sensorsysteme für Gase, W. Göpel, Conf.Proc.InCom 95, Düsseldorf (FRG) (1995); Nachr.Chem.Technik Lab., 43, 1995, 318-321.

Oxygen Electrodes of Zirconia Electrolytes: Fundamentals and Application to the Analysis of Oxygen Containing Gases, G. Reinhardt, V. Baitinger and W. Göpel, Conf.Proc.Euroconference on Solid State Ionics, Funchal (P) (1995); Ionics, 1, 1995, 504-513.

Calibration procedure for SnO2 based gas sensors, N. Bârsan, A. Tomescu, Thin solid films, 259, 1995, 91-95.

Switching Effect at a Platinum Electrode on Stabilized Zirconia During Oxygen Reduction in the Presence of NO, S.I. Somov, G. Reinhardt, H.-D. Wiemhöfer and W. Göpel, Conf.Proc.1st Euroconf.on Solid State Ionics, Zakynthos (GR) (1994); Ionics, 1, 1995, 136-140.

Atomically Resolved Scanning Tunneling Spectra on Si(001)2x1 Asymmetric Dimers, A.W. Munz, Ch. Ziegler and W. Göpel, Phys.Rev.Lett., 20, 1995, 2244-2247.

Solid Electrolytes for Gas Sensing at High Temperatures. Multi Electrode Setup to Analyze Gas Mixtures, G. Reinhardt, S.I. Somov, U. Schönauer, U. Guth and W. Göpel, Conf.Proc.Eurosensors IX, Stockholm (S), Vol. 1, 1995, 799-802.

Chemo- und Biosensorik: Quo vadis?, W. Göpel, Technisches Messen, 62, 1995, 183-185.

With Organized Metal/Organic/Metal Heterostructures towards Molecular Electronic Devices, M. Schmelzer, M. Burghard, C.M. Fischer, S. Roth and W. Göpel, Conf.Proc.ICSM, Seoul (Korea) (1994); Synth.Met., 71, 1995, 2087-2088.

Nanostructured Sensors for Molecular Recognition, W. Göpel, Conf.Proc.NATO ARW, Cambridge (GB) (1994); Phil.Trans.R.Soc.London A, 353, 1995, 333-354.

Thermal Etching of Si(001) - a STM Study, A.W. Munz, Ch. Ziegler and W. Göpel, Surf.Sci., 325, 1995, 177-184.

Supramolecular and Polymeric Structures for Gas Sensors, W. Göpel, Conf.Proc.5th Int.Meeting on Chemical Sensors, Rome (I) (1994); Sensors and Actuators B, 24-25, 1995, 17-32.

Combination of Pressure Modulation and Impedance Spectroscopy for Study of Electrode Kinetics on Solid Electrolytes: The Porous Gold/Solid Sodium Carbonate Interface, A. Dubbe, H.-D. Wiemhöfer and W. Göpel, J.Electrochem.Soc., 142, 1995, 2757-2761.

Analysis of Complex Gas Mixtures by Pattern Recognition with Polymer Based Quartz Microbalance Sensor Arrays, G. Kraus, A. Hierlemann, G. Gauglitz and W. Göpel, Conf.Proc.Eurosensors IX, Stockholm (S), Vol. 1, 1995, 675-678.

Integrated Array Sensor for Detecting Organic Solvents, J.W. Gardner, A. Pike, N.F. de Rooij, M. Koudelka-Hep, A. Hierlemann and W. Göpel, Conf.Proc.Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 26-27, 1995, 135-139.

The temperature dependence of the response of SnO2 -based gas sensig layers to O2, CH4 and CO, N. Bârsan, A. Tomescu, Sensors and Actuators B, 26-27, 1995, 45-48.

Influence of Oxygen on the Paramagnetic Properties of Polypyrrole Layers, A. Bartl, L. Dunsch, D. Schmeißer, W. Göpel and H. Naarmann, Synth.Met., 69, 1995, 389-390.

Utilization of a Self-assembled Peptide Monolayer for an Impedimetric Immunosensor, M. Knichel, P. Heiduschka, W. Beck, G. Jung and W. Göpel, Sensors and Actuators B, 28, 1995, 85-94.

Metal Oxide Sensors: New Devices Through Tailoring Interfaces on the Atomic Scale, W. Göpel and G. Reinhardt, Sensors Update Sensor Technology - Applications - Markets, H. Baltes, W. Göpel and J. Hesse (Eds.), VCH, Vol. 1, 1996, 49-120, Weinheim (FRG), 3-527-29329-9.

Intrinsic Defects at TiO2(110) Surfaces Studied with Scanning Tunneling Microscopy, S. Fischer, A.W. Munz, K.D. Schierbaum and W. Göpel, Conf.Proc.STM 95, Snowmass (USA) (1995); J.Vac.Sci.Technol. B, 14, 1996, 961-965.

Ultimate Limits in the Miniaturization of Chemical Sensors, W. Göpel, Sensors and Actuators A, 56, 1996, 83-102.

Carbonate Based CO2 Sensors with High Performance, Th. Lang, H.-D. Wiemhöfer and W. Göpel, Conf.Proc.Eurosensors IX, Stockholm (S) (1995); Sensors and Actuators B, 34, 1996, 383-387.

Chemische Sensoren - technische Sinnesorgane für Riechen und Schmecken, W. Göpel, Spektrum der Wissenschaft, Sonderband Mikrosystemtechnik, 1996, 71-77.

The Interaction of Rh with Intrinsic Defects of Reduced Rh/CeO2 Catalysts: A Comparative XPS/UPS and 1H-NMR Study, A. Pfau, J. Sanz, K.D. Schierbaum, W. Göpel, J.P. Belzunegui and J.M. Rojo, Conf.Proc.11th Int.Congress of Catalysis, Baltimore (USA), 1996.

Performance of a Thin Film Microelectrode Array for Monitoring Electrogenic Cells in Vitro, A. Mohr, W. Finger, K.J. Föhr, W. Göpel, H. Hämmerle and W. Nisch, Conf.Proc.Eurosensors IX, Stockholm (S) (1995); Sensors and Actuators B, 34, 1996, 265-269.

New Solid Electrolytes Bases on Bismuth Oxide, P. Shuk, H.-D. Wiemhöfer, U. Guth and W. Göpel, Ionics, 2, 1996, 46-52.

Submonolayer-Pt on TiO2(110) Surfaces: Electronic and Geometric Effects, S. Fischer, K.D. Schierbaum and W. Göpel, Conf.Proc.EMRS Spring Meeting, Strasbourg (F) (1995); Sensors and Actuators B, 31, 1996, 13-18.

Synthesis of Polysiloxane-Bound (Ether-phosphine)palladium Complexes. Stoichiometric and Catalytic Reactions in Interphases, E. Lindner, R. Schreiber, Th. Schneller, P. Wegner, H.A. Mayer, Ch. Ziegler and W. Göpel, Inorg.Chem., 35, 1996, 514-525.

Phthalocyanines as Sensitive Materials for Chemical Sensors, R. Zhou, F. Josse, W. Göpel, Z.Z. Öztürk and Ö. Bekaroglu, Appl.Organomet.Chem., 10, 1996, 557-577.

Gas Analysis with Arrays of Solid-State Electrochemical Sensors: Implications to Monitor HC's and NOx in Exhausts, S.I. Somov, G. Reinhardt, U. Guth and W. Göpel, Conf.Proc.6th Int.Meeting on Chemical Sensors, Gaithersburg (USA) (1996); Sensors and Actuators B, 35-36, 1996, 409-418.

Microstructured Peptide-Functionalised Surfaces by Electrochemical Polymerisation, P. Heiduschka, W. Göpel, W. Beck, W. Kraas, S. Kienle and G. Jung, Chem.Eur.J., 2, 1996, 667-672.

Oxide Ion Conducting Solid Electrolytes Based on Bi2O3, P. Shuk, H.-D. Wiemhöfer, U. Guth, W. Göpel and M. Greenblatt, Sol.State Ion., 89, 1996, 179-196.

Thermal Stability and Sublimation Behavior of (GaPcF)n, (AlPcF)n, and their 1:1 Copolymer, Ch. Ziegler, D. Martin and W. Göpel, Mat.Res.Bull., 31, 1996, 1149-1157.

Ozone Detection in the ppb-Range with Workfunction Sensors Operating at Room Temperature, T. Doll, J. Lechner, I. Eisele, K.D. Schierbaum and W. Göpel, Conf.Proc.Eurosensors IX, Stockholm (S) (1995); Sensors and Actuators B, 34, 1996, 506-510.

Self-assembled Monolayers for Chemical Sensors: Molecular Recognition by Immobilized Supramolecular Structures, J. Rickert, T. Weiß and W. Göpel, Conf.Proc.EMRS Spring Meeting, Strasbourg (F) (1995); Sensors and Actuators B, 31, 1996, 45-50.

New Concepts for Direct Affinity Transducers in Drug Screening, W. Göpel, G. Gauglitz and S. Fischer, Conf.Proc.6th Europ.Symp. on Biomolecular Interaction Analysis, Montpellier (F), 1996, 68-76.

La2O3-CeO2 Mixed Oxides as Active Catalytic Materials: Correlation of Bulk Structural Changes and Defect Mechanism with Surface Electronic Structure and Reactivity, M.A. Morris, J. Cunningham, J.P. McGrath, A. Pfau, W. Göpel and K.D. Schierbaum, Conf.Proc.11th Int.Congress of Catalysis, Baltimore (USA), 1996.

Trends in Pattern Recognition and Multicomponent Analysis with Chemical Sensors, W. Göpel, Conf.Proc.Sensor Meeting of Japanese Electrical Engineering Soc., Tokyo (J), 1996.

Transducer Based Approaches for Parallel Binding Assays in HTS, A. Brecht, R. Burckardt, J. Rickert, I. Stemmler, A. Schuetz, S. Fischer, Th. Friedrich, G. Gauglitz, Conf.Proc.2nd Annual Conf.of the Soc.for Biomolecular Screening, Basel (CH) (1996); J.Biomol.Screeni, 1, 1996, 191-201.

Molecular Recognition with Metal Containing Supramolecular Compounds: Soluble Tetradentate Dithioglyoximes for the Detection of Organic Solvents in the Gas Phase, Z.Z. Öztürk, R. Zhou, V. Ahsen, Ö. Bekaroglu and W. Göpel, Conf.Proc.6th Int.Meeting on Chemical Sensors, Gaithersburg (USA) (1996); Sensors and Actuators B, 35-36, 1996, 404-408.

A New Affinity Biosensor: Self-Assembled Thiols as Selective Monolayer Coatings of Quartz Microbalances, J. Rickert, T. Weiß, W. Kraas, G. Jung and W. Göpel, Conf.Proc.Eurosensors IX, Stockholm (S) (1995); Conf.Proc.ABI Workshop,Tampere (SF) 1995; Biosensors, 11, 1996, 591-598.

Entwicklungstrends der Chemo- und Biosensorik, W. Göpel, GIT Fachz. Lab., 4, 1996, 330-335.

Characterization and Simulation of Organic Adsorbates on the Si(100)(2x1)-Surface Using Photoelectron-Spectroscopy and Quantum Mechanical Calculations, Th. Kugler, Ch. Ziegler and W. Göpel, Conf.Proc.EMRS Spring Meeting 1995, Strasbourg (F) (1995); Mat.Sci.Eng. B, 37, 1996, 112-115.

Nanosensors and Molecular Recognition, W. Göpel, Nanotechnology, Spec. Issue of Microelectronics Engineering, 32, 1996, 75-110.

A Mixed Self-assembled Monolayer for an Impedimetric Immunosensor, J. Rickert, P. Heiduschka, W. Beck, G. Jung and W. Göpel, Conf.Proc.3rd World Congress on Biosensors, New Orleans (USA) (1994); Biosensors and Bioelectronics, 11, 1996, 757-768.

Surface Attachment of Functional Peptides by Electrochemical Polymerisation, P. Heiduschka, W. Beck, W. Kraas, S. Kienle, G. Jung and W. Göpel, Surface Modification of Polymeric Biomaterials, B.D. Radner and D.G. Castner (Eds.), Plenum Press, 1996, 135-146, New York.

Properties of ceramic semiconductor sensors based on SnO2-Sb2O3, D.Orlik, M.Ivanovskaya, A.Gurlo, J. Anal. Chem, 52, 1997, 59.

Self-Assembly of ?-Functionalized Terthiophenes on Gold, B. Liedberg, Z. Yang, I. Engquist, M. Wirde, U. Gelius, G. Götz, P. Bäuerle, R.-M. Rummel, Ch. Ziegl, J.Phys.Chem., 101, 1997, 5951-5962.

Controlled Immobilization of Recognition Sites in Layer Structures, B. Liedberg and W. Göpel, Conf.Proc.Artificial Biosensing Interfaces, Tübingen (FRG) (1996); Biosensors and Bioelectronics, 12, 1997, 689-690.

Electrode Reactions at Solid Electrolytes: Finite Difference Calculations to Describe Geometrical and Electrical Effects of Planar Devices, G. Reinhardt and W. Göpel, Conf.Proc.ISE, Paris (F), 1997.

QCM Operation in Liquids: Constant Sensitivity During Formation of Extended Protein Multilayers by Affinity, J. Rickert, A. Brecht and W. Göpel, Analyt.Chem., 69, 1997, 1441-1448.

Effects of Pretreatments and Modifiers on Electrochemical Properties of Carbon Paste Electrodes, Q. Chi, W. Göpel, T. Ruzgas, L. Gorton and P. Heiduschka, Electroanalysis, 5, 1997, 357-365.

Quartz Crystal Microbalances for Quantitative Biosensing and Characterizing Protein Multilayers, J. Rickert, A. Brecht and W. Göpel, Conf.Proc.Biosensors 96, Bangkok (Thail.) (1996); Biosensors and Bioelectronics, 12, 1997, 567-575.

X-ray Photoemission and Auger Electron Spectroscopy Analysis of Fast Responding Activated Metal Oxide Silicon Carbide Gas Sensors, A. Lloyd Spetz, D. Schmeißer, A. Baranzahi, B. Wälivaara, W. Göpel and I. Lundström, Thin Solid Films, 299, 1997, 183-189.

Selective Detection of Nitrogen and Oxygen Containing Volatile Organic Compounds: Use of Metal-Modified Polysiloxanes as Sensor Coatings, A. Hierlemann, K. Bodenhöfer, M. Fluck, V. Schurig and W. Göpel, Conf.Proc.Eurosensors IX, Stockholm (S) (1995); Analyt.Chim.Acta, 346, 1997, 327-339.

Octakis(Alkylthio)-Substituted Phthalocyanines for the Detection of Organic Solvents, Z.Z. Öztürk, R. Zhou, A.G. Gürek, Ö. Bekaroglu and W. Göpel, Conf.Proc.Eurosensors XI, 1997, 735-738, Warschau (P), 83-908335-0-6.

Selectivity-Optimization of Planar Amperometric Multi-Electrode Sensors: Identification of O2, NOx and Combustible Gases in Exhausts at High Temperatures, G. Reinhardt, I. Rohlfs, R. Mayer and W. Göpel, Conf.Proc.7th IMCS, 1997, 728-730, Beijing (China), 7-80003-423-2.

Chiral Discrimination of Inhalation Anesthetics and Methyl Propionates by Thickness Shear Mode Resonators: New Insights into the Mechanisms of Enantioselectivity by Cyclodextrins, K. Bodenhöfer, A. Hierlemann, M. Juza, V. Schurig and W. Göpel, Analyt.Chem., 69, 1997, 4017-4031.

Thin Film Preparation of Oligomeric Si-phthalocyanines: Thermal Stability and Sublimation Behavior, B. Reusch, Ch. Ziegler, M.E. Kenney and W. Göpel, Thin Solid Films, 299, 1997, 63-66.

Sravnenie svoistv poluprovodnikovych gasovych sensorov na osnove plenok oksida india, prigotovlennych rasnymi metodami (Comparison of properties of semiconductor gas sensors based on In2O3 films obtai, A. Gurlo, Vestnik BGU. Khimia (in russian), 2, 1997, 20-23.

Structure and Properties of Sol-Gel Obtained SnO2 and SnO2 Pd Films, M.Ivanovskaya, P.Bogdanov, D.Orlik, A.Gurlo, V.Romanovskaya, Thin Solid Films, 296, 1997, 41-43.

Strychnine Analysis with Neuronal Networks in vitro: Extracellular Array Recording of Network Responses, A. Harsch, Ch. Ziegler and W. Göpel, Conf.Proc.Artificial Biosensing Interfaces, Tübingen (FRG) (1996); Biosensors and Bioelectronics, 12, 1997, 827-835.

Chiral Discrimination by Simple Gas Sensors, K. Bodenhöfer, A. Hierlemann and W. Göpel, Conf.Proc.Transducers 97, IEEE Catalog, 1997, 1391-1394, Chicago (USA), 0-7803-3829-4/97.

Regeneration of an Electropolymerised Polypyrrole Layer for the Amperometric Detection of Ammonia, P. Heiduschka, M. Preschel, M. Rösch and W. Göpel, Biosensors and Bioelectronics, 12, 1997, 1227-1231.

Odor, Drug, and Toxin Analysis with Neuronal Networks in vitro: Extracellular Array Recording of Network Responses, G.W. Gross, A. Harsch, B.K. Rhoades and W. Göpel, Conf.Proc.Biosensors 96, Bangkok (Thail.) (1996); Biosensors and Bioelectronics, 12, 1997, 373-393.

Artificial Noses and Chiral Discrimination: Mass Sensitive Chemical Sensors and Chromatographic Columns with Biomimetic Coatings, W. Göpel, K. Bodenhöfer, A. Hierlemann, B. Koppenhöfer and V. Schurig, Invited Talk ISE, Paris (F) (1997); Conf.Proc.Eurosensors XI, 1997, 1611, Warschau (P), 83-908335-0-6.

Electronic Properties of Bi2O3 Based Solid Electrolytes, P. Shuk, H.D. Wiemhöfer and W. Göpel, Z.Anorg.Allg.Chem., 623, 1997, 892-896.

Chiral Discrimination in the Gas Phase Using Different Transducers: Thickness Shear Mode Resonators and Reflectometric Interference Spectroscopy, K. Bodenhöfer, A. Hierlemann, J. Seemann, G. Gauglitz, B. Christian, B. Koppenhöfer and W. Göpel, Analyt.Chem., 69, 1997, 3058-3068.

New Method of Vaporizing Volatile Organics for Gas Tests, K. Bodenhöfer, A. Hierlemann, R. Schlunk and W. Göpel, Sensors and Actuators B, 45, 1997, 259-264.

Monitoring HC's and NOx in Car Exhausts: Gas Analysis with Arrays of Solid State Electrochemical Sensors, W. Göpel, G. Reinhardt, S. Somov and U. Guth, Conf.Proc.Sensor 97, Vol. 3, 1997, 273-278, Nürnberg (D).

Surface Defects and Platinum Overlayers on TiO2(110) Surfaces: STM and Photoemission Studies, S. Fischer, K.D. Schierbaum and W. Göpel, Vacuum, 48, 1997, 601-605.

Influence of the heat treatment on the formation of the paramagnetic centres in ÌîÎ3, M.Ivanovskaya, A.Gurlo, E.Lutynskaya, V.Romanovskaya, Rus. J. General Chem, 67, 1997, 1788-1794.

Chemical Analysis and Sensorics with Microstructured Devices, W. Göpel, Conf.Proc.8. Tagung Festkörperanalytik, Wien (A) (1995); Microchim.Acta, 125, 1997, 179-196.

Chiral Discrimination Using Piezoelectric and Optical Gas Sensors, K. Bodenhöfer, A. Hierlemann, J. Seemann, G. Gauglitz, B. Koppenhöfer and W. Göpel, Nature, 387, 1997, 577-580.

Characterization and Optimization of Microelectrode Arrays for In-vivo Nerve Signal Recording and Stimulation, A. Blau, Ch. Ziegler, M. Heyer, G. Schwitzgebel, T. Matthies, T. Stieglitz, J.-U. Mayer and W. Göpel, Conf.Proc.Biosensors 96, Bangkok (Thail.) (1996); Biosensors and Bioelectronics, 12, 1997, 883-892.

Testing, Modeling and Optimization of Planar Amperometric Cells Based on Solid Electrolytes, I. Rohlfs, G. Reinhardt and W. Göpel, Conf.Proc.ISE, Paris (F), 1997.

Work Function Detection of Solvents with Mass Sensitive Layers, T. Doll, I. Eisele, T. Weiss, K.D. Schierbaum and W. Göpel, Conf.Proc.Eurosensors XI, 1997, 893-896, Warschau (P), 83-908335-0-6.

Soluble Phthalocyanines as Suitable Coatings for Highly Sensitive Gas Phase VOC-Detection, C. Fietzek, K. Bodenhöfer, H. Hees, P. Haisch, M. Hanack and W. Göpel, Conf.Proc.7th IMCS, Beijing (China) ISBN 7-80003-423-2 (1997) 731-733, Sensors and Actuators B, 65, 1997, 85-87.

Processing of Nerve Cell Signal Recordings from Cultured Networks Using Artificial Neural Nets, M. Bogdan, A. Harsch, G. Gross, W. Göpel and W. Rosenstiel, Conf.Proc.IASTED 'Artificial Intelligence and Soft Computing', Banff (Can), 1997, 360-363.

Mass-sensitive Detection of Oligonucleotides by Quartz Crystal Microbalance, T. Ketterer, J. Rickert, E. Bayer and W. Göpel, Conf.Proc.7th IMCS, 1998, 816-818, Beijing (China), 7-80003-423-2.

Detection of oxidising gases by thin-film semiconductor sensors based on In2O3, A.Gurlo, M.Ivanovskaya, Rus. J. Phys. Chem, 72, 1998, 299-302.

Biosensor Development, Ch. Ziegler and W. Göpel, Current Opinion in Chemical Biology, 2, 1998, 585-591.

Copper-induced Gradual Modification of Tin Dioxide Thin Film Gas Sensors, A. Galdikas, A. Mironas, D. Senuliene, A.?Setkus, W. Göpel and K.-D. Schierbaum, Conf.Proc.Eurosensors XII, 1998, 653-656, Southampton (UK), 0-7503-0536-3.

Structure of molybdenum trioxide prepared from MoO3·nH2O, A.Gurlo, M.Ivanovskaya, Inorganic Materials, 34, 1998, 1466-1468.

Tubular Amperometric High-Temperature Sensors: Simultaneous Determination of Oxygen, Nitrogen Oxides, and Combustible Components, S.I. Somov, G. Reinhardt, U. Guth and W. Göpel, Conf.Proc.7th IMCS, 1998, 443-445, Beijing (China), 7-80003-423-2.

Sensors in Biomolecular Interaction Analysis and Pharmaceutical Drug Screening, A. Brecht, G. Gauglitz and W. Göpel, Sensors Update, H. Baltes, W. Göpel and J. Hesse (Eds.), Wiley-VCH, Vol. 3, 1998, 239-287, Weinheim (D), 3-527-29433-3.

Molecular Recognition: Supramolecular, Polymeric and Biomimetic Coatings for Chemical Sensors and Chromatographic Columns, T. Wessa and W. Göpel, Conf.Proc.Int.Congress on Analytical Chemistry, Moskau (R) (1997); Fres.Z.Analyt.Chem., 361, 1998, 239-245.

Bioelectronic Noses: A Status Report, Part II, Ch. Ziegler, W. Göpel, (coordinating authors), H. Hämmerle, G. Jung, L. Laxhuber, H.-L. Schmidt, S., Biosensors and Bioelectronics, 13, 1998, 539-571.

Bioelectronics and Nanotechnologies, W. Göpel, Conf.Proc.Biosensors 96, Bangkok (Thail.) (1996); Biosensors and Bioelectronics, 13, 1998, 723-728.

Filters for Tin Dioxide CO Gas Sensors to Pass the UL2034 Standard, M. Schweizer-Berberich, S. Strathmann, W. Göpel, R. Sharma and A. Peyre-Lavigne, Conf.Proc.7th IMCS, 1998, 737-739, Beijing (China), ISBN 7-80003-423-2.

Electronic Noses for Gas and Odor Sensing in Food Industries: State of the Art and New Concepts, W. Göpel, Plenary Talk "Food and Science Conference", 1997, Heilbronn (D),in: R. Stute (Ed.), Conf. Proc. BEST, 1998, 225-248, 3-00-003422-6.

Bioelectronic Noses: A Status Report, Part I, W. Göpel, Ch. Ziegler, (coordinating authors), H. Breer, D. Schild, (biological section), R. Apfelba, Biosensors and Bioelectronics, 13, 1998, 479-493.

Chemical Imaging: I. Concepts and Visions for Electronic and Bioelectronic Noses, W. Göpel, Sensors and Actuators B, 52, 1998, 125-142.

Natural Neural Networks for Quantitative Sensing of Neurochemicals: an Artificial Neural Network Analysis, Ch. Ziegler, A. Harsch and W. Göpel, Conf.Proc.7th IMCS, Beijing (China) ISBN 7-80003-423-2 (1998) 801-803, Sensors and Actuators B, 65, 1998, 160-162.

VOC-Detection in Liquids with BAW-Devices: The Use of Polyketones and PDMS as Optimized Coatings, M. Kaspar, A. Baumann, M. Schmid, E. Lindner and W. Göpel, Conf.Proc.7th IMCS, 1998, 722-724, Beijing (China), 7-80003-423-20.

Rasterelektronenmikroskopische und röntgenanalytische Gefügeuntersuchungen von Al- und Si-legiertem Gußeisen mit Kugel- und Vermiculargraphit, J.M. Soinski, K.D. Schierbaum, E. Nadler and W. Göpel, Z.Metallkd., 89, 1998, 32-36.

Structural behaviour of In2O3 prepared by heat treatment of stabilised sol, Ì.Ivanovskaya, P.Bogdanov, A.Gurlo, L.Ivashkewich, Inorganic Materials, 34, 1998, 257-261.

Photoemission Studies of the Electronic Properties of the Space Charge Layer of SnO2(110) Surface, J. Szuber, W. Göpel, Conf. Proc. SGS 1998, Ustron (PL), Electron Technology, 33, 1998, 1-21, 0070-98-16.

Strategies for Mimicking Olfaction: The Next Generation of Electronic Noses?, C. Pearce, J.W. Gardner and W. Göpel, Sensors Update, W. Göpel, J. Hesse and H. Baltes (Eds.), Wiley-VCH, Vol. 3, 1998, 61-130, Weinheim (D), 3-527-29433-3.

Efficient Gas Sensor Mediated Enantiomer Discrimination of 2-Substituted Methyl Propionates and Chiral Inhalation Anesthetics on a Modified ?-Cyclodextrin, "", K. Bodenhöfer, A. Hierlemann, W. Göpel, M. Juza, B. Gross and V. Schurig, Conf.Proc.Chiral Europe '97, London (UK) (1997) 71-74; Chemistry Today, 1998, 56-58.

Exhaust Gas Sensing with Solid Electrolytes: Quo Vadis?, W. Göpel, U. Guth, G. Reinhardt and M. Rösch, Conf.Proc.Sensor 99, Vol. 2, 1999, 125-130, Nürnberg (D).

Nanoparticle Engineering for Gas Sensor Optimisation: Improved Sol-Gel Fabricated Nanocrystalline SnO2 Thick Film Gas Sensor for NO2 Detection by Calcination, Catalytic Metal Introduction and Grinding, A. Diéguez, A. Romano-Rodriguez, J.R. Morante, J. Kappler, N. Bârsan and W. Göpel, Sensors and Actuators B, 60, 1999, 125-137.

Electrosorption on Activated Carbon Textile, B. Janocha, H. Bauser, Ch. Oehr, H. Brunner, W. Göpel, Chem. Eng. Technol., 22, 1999, 750-752.

Amperometric Multi-Electrode-Sensors for NOx and Hydrocarbons: Numerical Optimization of Operation Parameters and Cell Geometries, G. Reinhardt, I. Rohlfs, R. Mayer, M. Rösch and W. Göpel, Conf.Proc.Sensor 99, Vol. 2, 1999, 137-142, Nürnberg (D).

Soluble Phthalocyanines as Coatings for Quartz-Microbalances: Specific and Unspecific Sorption of volatile Organic Compounds, C. Fietzek, K. Bodenhöfer, P. Haisch, M. Hees, M. Hanack, S. Steinbrecher, F. Zhou, E. Plies and W., Conf.Proc.Eurosensors XII,, Southampton (UK) ISBN 0-7503-0536-3 (1998) 201-204; Sensors and Actuator, 57, 1999, 88-98.

Effective Use of Molecular Recognition in Gas Sensing: Results from Acoustic Wave and In-Situ FTIR Measurements, A. Hierlemann, A.j. Ricco, K. Bodenhöfer and W. Göpel, Conf. Proc. Solid-State Sensor and Actuator Workshop, Hilton Head Island (USA), ISBN 09640024-2-6 (, 71, 1999, 3022-3035.

Fundamental and Practical Aspects in the Design of Nanoscaled SnO2 Gas Sensors: A Status Report, N. Bârsan, M. Schweizer-Berberich and W. Göpel, Fres.Z.Analyt.Chem., 365, 1999, 287-304.

Biosensors Based on Acoustic Wave Devices, J. Rickert, G.L. Hayward, B.A. Cavic, M. Thompson and W. Göpel, Sensors Update, H. Baltes, W. Göpel and J. Hesse (Eds.), Wiley-VCH, Vol. 5, 1999, 105-139, Weinheim, 3-527-29551-8.

Von der Mikrotechnik zur Nanotechnik: Funktionalität durch Chemie, W. Göpel, Conf.Proc.VDI-Forum "Schlüsseltechnologien für intelligente Produkte und Dienstleistungen", VDI-Berichte, Nr. 1480 (, 1999, 43-58, Mannheim.

High-Performance Gas Sensing of CO: Comparative Tests for Semiconducting (SnO2-Based) and for Amperometric Gas Sensors, N. Barsan, J.R. Stetter, M. Findlay Jr., W. Göpel, Anal. Chem., 71, 1999, 2512-2517.

High-Performance Gas Sensing of CO: Comparative Tests for Semiconducting (SnO2-based) and for Amperometric Gas Sensors, N. Bârsan, J.R. Stetter, M. Findlay and W. Göpel, Anal.Chem., 71, 1999, 2512-2517.

Monolayers of Cyclopeptides: A New Concept for Molecular Recognition and Enantiomeric Discrimination, T. Weiß, D. Leipert, M. Kaspar, G. Jung and W. Göpel, Adv. Mat., 11, 1999, 331-335.

Elektrosorption an Aktivkohlegewebe, B. Janocha, H. Bauser, Ch. Oehr, H. Brunner and W. Göpel, Chemie Ingenieur Technik 71 (1999) 86-89; Chem.Eng.Technol., 22, 1999, 750-752.

Natural neural networks for quantiative sensing of neurochemicals: an artifical neural network analysis, Christiane Ziegler, Annette Harsch, Wolfgang Göpel, Sensors and Actuators B, 65, 2000, 160 - 162.

Comparison Spectra of (111) Textured CeO2 Thin Films by XPS, A. Pfau, K.D. Schierbaum and W. Göpel, Surf.Sci.Spectra, 2000.

From Electronic to Bioelectronic Olfaction, or: From Artificial MOSES to Real Noses, W. Göpel, Conf. Proc. Plenary Talk 7th IMCS Beijing(China), Sensors and Actuators B, 65, 2000, 70-72, 7-80003-4.

Soluble phtalocyanines as suitable coatings for highly sensitive gas phase VOC-detection, C. Fietzek, K. Bodenhöfer, M. Hees, P. Haisch, M. Hanack, W. Göpel, Sensors and Actuators B, 65, 2000, 85-87.

Detection of oligonucleotide sequences with quartz crystal oscillators, T. Ketterer, H. Stadler, J. Rickert, E. Bayer, W. Göpel, Sensors and Actuators B, 65, 2000, 73-75.

Sensors for Biomolecular Studies, J. Rickert, T. Wessa and W. Göpel, Microsystem Technology: A Powerful Tool for Biomolecular Studies, M Köhler et al. (Eds.), 2000, Birkhäuser, Basel (CH).

Enantioselective Monitoring of Chiral Inhalation Anaesthetics Using Simple Gas Sensors, K. Bodenhöfer, A. Hierlemann, M. Juza, B. Gross, V. Schurig and W. Göpel, subm. to Sensors and Materials, 2000.

Selectivity-optimization of planar amperometric multi-electrode sensors: identification of O2, NOx and combustible gases in exhausts at high temperatures, G. Reinhardt, I. Rohlfs, R. Mayer, W. Göpel, Sensors and Actuators B, 65, 2000, 76 - 78.

Ionic Conductivity of Ce3NF6, G. Noetzel, E. Schweda, H.-D. Wiemhöfer and W. Göpel, subm. to Eur.J.Solid State Inorgan. Chem., 2000.

Application-specific sensor systems based on CMOS chemical microsensors, A. Hierlemann, D. Lange, C. Hagleitner, N. Kerness, A. Koll, O. Brand, H. Baltes, Sensors and Actuators B, 70, 2000, 2-11.

Photoemission Spectra of Fluoride Ion Conducting Cerium Trifluoride Single Crystals, O. Glumov, A. Pfau, H.-D. Wiemhöfer, I.V. Murin and W. Göpel, subm. to Appl. Phys., 2000.

Conferring Selectivity to Chemical sensors via Polymer Side-Chain Selection: Thermodynamics of Vapor Sorption by a Set of Polysiloxanes on Thickness-Shear Mode Resonators, A. Hierlemann, A.J. Ricco, K. Bodenhöfer, A. Dominik, W. Göpel, Anal. Chem., 72, 2000, 3696-3708.

Investigation of Bioaffinity with Electrochemical Detection - Characterization of Different Combinations of Markers and Electrodes, R. Burckardt and W. Göpel, Conf.Proc.7th IMCS(1998), Sensors and Actuators B, 65, 2000, 82-84, Beijing (China), 7-80003-423-2.

Tubular Amperometric High-Temperature Sensors: Simultaneous Determination of Oxygen, Nitrogen Oxides, and Combustible Components, S.I. Somov, G. Reinhardt, U. Guth and W. Göpel, Sensors and Actuators B, 65, 2000, 68 - 69.

High Performance Gas Sensing of CO: Comparative Tests for (SnO2-based) Semiconducting and for Electrochemical Sensors, N. Bârsan, J.R.,Findlay,M. Stetter and W. Göpel, Conf.Proc.7th IMCS, Beijing (China) ISBN 7-80003-423-2 (1998) 740-742, Sensors and Actuators B, 66, 2000, 31-33.

Multicomponent analysis of some environmentally important gases using semiconductor tin oxide sensors, M.N. Abbas, G.A. Moustafa, W. Göpel, Analytica Chimica Acta, 431, 2001, 181 - 194.

Mechanism of O3 and NO2 detection and selectivity of In2O3 sensors, M. Ivanovskaya, A. Gurlo, P. Bogdanov, Sensors and Actuators B, 77, 2001, 264-267.

Influence of the catalytic introduction procedure on the nano-SnO2 gas sensor performances Where and how stay the catalytic atoms?, A. Cabot, A. Dieguez, A. Romano-Rodriguez, J.R. Morante, N. Barsan, Sensors and Actuators, B 79, 2001, 98 - 106.

Recognition of chiral flavoring agents using beta-cyclodexrin coated quertz-crystal-microbalances, C. Fietzek, T. Hermle, W. Rosenstiel, V. Schurig, Fresensius J. Anal. Chem., 371, 2001, 58-63.

Multi-component Gas Analysis: An Analytical Chemistry Approach Applied to Modified SnO₂-Sensors, K.D. Schierbaum, U. Weimar and W. Göpel, Sensors and Actuators B, 2, 1990, 71-78.

Pattern Recognition Methods for Gas Mixture Analysis: Application to Sensor Arrays Based upon SnO₂, U. Weimar, K.D. Schierbaum and W. Göpel, Conf. Proc. Eurosensors III, Montreux (CH) (1989); Sensors and Actuators B, 1, 1990, 93-96.

Conductance, Work Function, and Catalytic Activity of SnO₂-based Gas Sensors, K.D. Schierbaum, R. Kowalkowski, U. Weimar and W. Göpel, Sensors and Actuators B, 3, 1991, 205-214.

Comparison of Ceramic, Thick Film, and Thin Film Chemical Sensors Based upon SnO₂, K.D. Schierbaum, U. Weimar and W. Göpel, Sensors and Actuators B, 7, 1992, 709-716.

A Modified Multilayer Perception Model for Gas Mixture Analysis, S.W. Moore, J.W. Gardner, E.L. Hines, W. Göpel and U. Weimar, Conf.Proc.Eurosensors VI, San Sebastian (E) (1992); Sensors and Actuators B, 15-16, 1993, 344-348.

Specific Palladium and Platinum Doping for SnO₂-based Thin Film Sensor Arrays, K.D. Schierbaum, J. Geiger, U. Weimar and W. Göpel, Conf.Proc.4th Int.Meeting on Chemical Sensors, Tokyo (J) (1992); Sensors and Actuators B, 13-14, 1993, 143-147.

Sensor Arrays Calibration with Enhanced Neural Networks, C. Di Natale, F. Davide, A. D'Amico, W. Göpel and U. Weimar, Sensors and Actuators B, 18-19, 1994, 654-657.

Environmental Chemical Sensing Using Quartz Microbalance Sensor Arrays: Application of Multicomponent Analysis Techniques, A. Hierlemann, U. Weimar, G. Kraus, G. Gauglitz and W. Göpel, Sensors and Materials, 7, 1994, 179-189.

Capacitive Sensors in CMOS Technology with Polymer Coating, C. Cornila, R. Lenggenhager, P. Malcovati, H. Baltes, A. Hierlemann, G. Noetzel, U. Weimar, and W. Göpel, Sensors and Actuators B, 24-25, 1995, 357-361.

Soluble Phthalocyanines for the Detection of Organic Solvents: Thin Film Structures with Quartz Microbalance and Capacitance Transducers, Z.Z. Öztürk, R. Zhou, U. Weimar, V. Ahsen, Ö. Bekaroglu and W. Göpel, Conf. Proc. Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 26-27, 1995, 208-212.

Silicon-Containing Monomers and Polymers as Sensitive Coatings for the Detection of Organic Solvent Vapours, R. Zhou, U. Weimar, K.D. Schierbaum, K.E. Geckeler and W. Göpel, Conf.Proc.Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 26-27, 1995, 121-125.

AC Measurements on Tin Oxide Sensors to Improve Selectivities and Sensitivities, U. Weimar and W. Göpel, Conf. Proc. Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 26-27, 1995, 13-18.

Polymer-Based Sensor Arrays and Multicomponent Analysis for the Detection of Hazardous Organic Vapours in the Environment, A. Hierlemann, U. Weimar, G. Kraus, M. Schweizer-Berberich and W. Göpel, Conf. Proc. Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 26-27, 1995, 126-134.

Application of Neural-Network Systems to the Dynamic Response of Polymer-Based Sensor Arrays, M. Schweizer-Berberich, J. Göppert, A. Hierlemann, J. Mitrovics, U. Weimar, W. Rosenstiel and W. Göpel, Conf. Proc. Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 26-27, 1995, 232-236.

Dynamic Calibration of QMB Polymer-Coated Sensors by Wiener Kernel Estimation, F. Davide, C. Di Natale, A. D'Amico, A. Hierlemann, J. Mitrovics, M. Schweizer, U. Weimar, W. Göpel, S. Marco, A. Pardo, Sensors and Actuators B, 26-27, 1995, 275-285.

A Composed Neural Network System for the Recognition of Gas Mixtures, F. Davide, C. Di Natale, A. D'Amico, A. Hierlemann, J. Mitrovics, M. Schweizer, U. Weimar and W. Göpel, Sensors and Actuators B, 24-25, 1995, 808.

Structure Identification of Non-linear Models for QMB Polymer-coated Sensors, F. Davide, C. Di Natale, A. D'Amico, A. Hierlemann, J. Mitrovics, M. Schweizer, U. Weimar and W. Göpel, Conf. Proc. Eurosensors VIII, Toulouse (F) (1994); Sensors and Actuators B, 24-25, 1995, 830-842.

Mustererkennung und Multikomponentenanalyse bei chemischen Sensoren, G. Kraus, U. Weimar, G. Gauglitz and W. Göpel, Technisches Messen, 62, 1995, 229-236.

Impedanzspektroskopie an Halbleitergassensoren, A. Krauß, U. Weimar and W. Göpel, Technisches Messen, 62, 1995, 260-266.

Polymers for Detecting Organic Vapours in the Environment, A. Hierlemann, U. Weimar, G. Kraus and W. Göpel, 'Sensors for Domestic Applications' and Proc.of t European School on Sensors, Castro Marina (I) 1994, A. D'Amico and G. Sberveglieri (Eds.), World Scientific, 1995, 254, Singapore, 981-02-2246-7.

Different Strategies for the Identification of Gas Sensing Systems, S. Marco, A. Pardo, F. Davide, C. Di Natale, A. D'Amico, A. Hierlemann, J. Mitrovics, M. Schweizer, U. Weimar, W. Göpel, Sensors and Actuators B, 34, 1996, 213-223.

Performances of Mass-Sensitive Devices for Gas Sensing: Bulk Acoustic Wave (BAW)- and Surface Acoustic Wave Transducers, K. Bodenhöfer, A. Hierlemann, G. Noetzel, U. Weimar and W. Göpel, Analyt. Chem., 68, 1996, 2210-2218.

Gravimetric, Dielectric and Calorimetric Methods for the Detection of Organic Solvent Vapours Using Poly(etherurethane) Coatings, R. Zhou, A. Hierlemann, U. Weimar and W. Göpel, Sensors and Actuators B, 34, 1996, 356-360.

Growth Twins in Nanocrystalline SnO₂ Thin Films by High-resolution Transmission Electron Microscopy, J.G. Zheng, X. Pan, M. Schweizer, F. Zhou, U. Weimar, W. Göpel and M. Rühle, J. Appl. Phys., 79, 1996, 7688.

Crystallographic Shear Planes in Nanocrystalline SnO₂ Thin Films by High Resolution Transmission Electron Microscopy, J.G. Zheng, X. Pan, M. Schweizer, U. Weimar, W. Göpel and M. Rühle, J. Mat. Sci., 31, 1996, 2317-2324.

Dislocations in Nanocrystalline SnO₂ Thin Films, J.G. Zheng, X. Pan, M. Schweizer, U. Weimar, W. Göpel and M. Rühle, Phil. Mag. Lett., 73, 1996, 93-100.

Morphological Analysis of Nanocrystalline SnO₂ for Gas Sensor Applications, A. Diéguez, A. Romano-Rodriguez, J.R. Morante, U. Weimar, M. Schweizer-Berberich and W. Göpel, Sensors and Actuators B, 31, 1996, 1-8.

The Effect of Pt and Pd Surface Doping on the Response of Nanocrystalline Tin Dioxide Gas Sensors to CO, M. Schweizer, J.G. Zheng, U. Weimar, W. Göpel, N. Bârsan, E. Pentia and A. Tomescu, Sensors and Actuators B, 31, 1996, 71-75.

Odours and Flavours Identified with Hybrid Modular Sensor Systems, H. Ulmer, J. Mitrovics, G. Noetzel, U. Weimar and W. Göpel, Sensors and Actuators B, 43, 1997, 24-33.

Grain Size Control in Nanocrystalline In₂O₃ Semiconductor Gas Sensors, A. Gurlo, M. Ivanovskaya, N. Barsan, M. Schweizer-Berberich, U. Weimar and W. Göpel, Sensors and Actuators B, 44, 1997, 327-333.

Gas Identification by Modulating Temperatures of SnO₂ Based Thick Film Sensors, A. Heilig, N. Bârsan, U. Weimar, M. Schweizer-Berberich, J.W. Gardner and W. Göpel, Sensors and Actuators B, 43, 1997, 45-51.

Sol-gel Prepared In₂O₃ Thin Films, A. Gurlo, M. Ivanovskaya, A. Pfau, U. Weimar and W. Göpel, Thin Solid Films, 307, 1997, 288-293.

Mustererkennung und Klassifizierung von Polymer-Analyt-Wechselwirkungen, G. Gauglitz, U. Weimar, J. Seemann and W. Göpel, Chemie und Informatik: Terra incognita oder das Land der unbegrenzten Möglichkeiten?, B. Koppenhöfer and U. Epperlein (Eds.), 1997, 69-82, Aachen (D), 3-8265-2709-7.

Nondestructive Assessment of the Grain Size Distribution of SnO₂ Nanoparticles by Low-Frequency Raman Spectroscopy, A. Diéguez, A. Romano-Rodriguez, J.R. Morante, N. Bârsan, U. Weimar and W. Göpel, Appl. Phys. Lett., 71, 1997, 1957-1959.

Correlation between XPS, Raman and TEM Measurements and the Gas Sensitivity of Pt and Pd Doped SnO₂ Based Gas Sensors, J. Kappler, N. Bârsan, U. Weimar, A. Diéguez, J.L. Alay, A. Romano-Rodriguez, J.R. Morante and W. Göpel, Conf.Proc.9.Tagung zur Festkörperanalytik, Chemnitz (D) (1997); Fres. Z. Analyt. Chem., 361, 1998, 110-114.

Modular Sensor Systems for Gas Sensing and Odor Monitoring: The MOSES Concept, J. Mitrovics, H. Ulmer, U. Weimar and W. Göpel, ACS Symposium Series: "Chemical Sensors and Interfacial Design, 31, 1998, 307-315.

In₂O₃ and MoO₃-In₂O₃ Thin Film Semiconductor Sensors Interaction with NO₂ and O₃, A. Gurlo, N. Bârsan, M. Ivanovskaya, U. Weimar and W. Göpel, Sensors and Actuators B, 47, 1998, 92-99.

Strategies to Avoid VOC Cross-Sensitivity of SnO₂-based CO Sensors, M. Schweizer-Berberich, S. Strathmann, U. Weimar, R. Sharma, A. Seube, A. Peyre-Lavigne and W. Göpel, Sensors and Actuators B, 58, 1999, 318-324.

Selectivity Enhancement of SnO₂ Gas Sensors: Simultaneous Monitoring of Resistances and Temperatures, A. Heilig, N. Bârsan, U. Weimar and W. Göpel, Sensors and Actuators B, 58, 1999, 302-309.

LabViewTM for Sensor Data Acquisition, A. Krauß, U. Weimar and W. Göpel, Trends Anal. Chem., 18, 1999, 312-318.

Quality Tests of Electronic Noses: The Influence of Sample Dilution and Sensor Drifts on the Pattern Recognition for Selected Case Studies, M. Schweizer-Berberich, M. Frank, T. Hermle, H. Ulmer, J. Mitrovics, U. Weimar and W. Göpel, Sensors and Actuators B, 65, 2000, 88-90.

Parameter optimisation in SnO₂ gas sensors for NO₂ detection with low cross-sensitivity to CO: sol-gel preparation, film preparation, powder calcination, doping and grinding, A. Diéguez, A. Romano-Rodriguez, JL. Alay, J.R. Morante, N. Barsan, J. Kappler, U. Weimar and W. Göpel, Sensors and Actuators B, 2000, 65, 166-168.

Analysis of the noble metal catalytic additives introduced by impregnation of as obtained SnO₂ sol-gel nanocrystals for gas sensors, A. Cabot, J. Arbiol, J.R. Morante, U. Weimar, N. Bârsan, W. Göpel, Sensors and Actuators B, 70, 2000, 87-100.

20 years improvement in gas sensors, U. Weimar, ISOEN 2015, 2015, Dijon France.

Optimised Sensor Arrays with Chromatographic Preseparation: Characterisation of Alcoholic Beverages, I. Heberle, A. Liebminger, U. Weimar and W. Göpel, Sensors and Actuators B, 68, 2000, 53-57.

Influence on the Gas Sensor Performances of the Metal Chemical States Introduced by Impregnation of Calcinated SnO₂ Sol-gel Nanocrystals, A. Diéguez, A. Vilà, A. Cabot, A. Romanol-Rodriguez, J.R. Morante, J. Kappler, N. Bârsan, U. Weimar and W. Göpel, Sensors and Actuators B, 68, 2000, 94-99.

Design and Fabrication of High-temperature Micro-hotplates for Drop-coated Gas Sensors, D. Briand, A. Krauss, B. Van der Schoot, U. Weimar, N. Bârsan, W. Göpel and N.F. de Rooij, Sensors and Actuators B, 68, 2000, 223-233.

Development of Modular Ozone Sensor System for Application in Practical Use, D. Sauter, U. Weimar, G. Noetzel, J. Mitrovics and W. Göpel, Sensors and Actuators B, 69, 2000, 1-9.

Complementary Analytical Measurements based upon Gas Chromatography/Mass Spectroscopy, Sensor System and Human Sensory Panel: a Case Study Dealing with Packaging Materials, M. Frank, H. Ulmer, J. Ruiz, P. Visani, U. Weimar, Anal. Chim. Acta, 431, 2001, 11-29.

Micromachined Metal Oxide Gas Sensors: Opportunities to Improve Sensor Performance, I. Simon, N. Bârsan, M. Bauer and U. Weimar, Sensors and Actuators B, 73, 2001, 1-26.

Oxygen-deficient SnO₂(100): A STM, LEED and XPS Study, M. Sinner-Hettenbach, M. Böthelid, J. Weissenrieder, H. von Schenck, T. Weiß, N. Bârsan and U. Weimar, Surface Science, 477, 2001, 50-58.

CO consumption of Pd doped SnO₂ based sensors, J. Kappler, A. Tomescu, N. Barsan, U. Weimar, Thin Solid Films, 391, 2001, 186-191.

NO₂ sensitive Au gate metal-oxide-semiconductor capacitors, D. Filippini, R. Aragon, U. Weimar, Journal of Applied Physics, 90, 2001, 1883-1886.

New NO₂ sensor based on Au gate field effect devices, D. Filippini, T. Weiß, R. Aragon, U. Weimar, Sensors and Actuators B, 78, 2001, 195-201.

Analysis of CO and CH₄ gas mixtures by using a micromachined sensor array, S. Capone, P. Siciliano, N. Barsan, U. Weimar, L. Vasanelli, Sensors and Actuators B, 78, 2001, 40-48.

Multicomponent Analysis and prediction with a cantilever array based gas sensors, B.H. Kim, F.E. Prins, D.P. Kern, S. Raible and U. Weimar, Sensors and Actuators B, 78, 2001, 12-18.

Investigation of CO/CH₄ mixtures measured with differently doped SnO₂ sensors, S. Hahn, N. Barsan, U. Weimar, Sensors and Actuators B, 78, 2001, 64-68.

Gas sensing properties of copper gate metal-oxide-semiconductor capacitors, D. Filippini, R. Aragon, U. Weimar, Journal of Vacuum Science and Technology B, 19, 2001, 825-828.

In situ diffuse reflectance infrared spectroscopy study of CO adsorption on SnO₂, S. Emiroglu, N. Barsan, U. Weimar, V. Hoffmann, Thin Solid Films, 391, 2001, 176-185.

High resolution photoemission study on SnO₂ gas sensors, M. Sinner-Hettenbach, N. Barsan, U. Weimar, T. Weiß, H. von Schenk, M. Göthelid, L. Giovanelly, G. Le Lay, Thin Solid Films B, 391, 2001, 192-197.

State of the Art of Gas Sensors - MOX Sensors as a Working Example, J. Kappler, N. Barsan, U. Weimar, Photoelectronics B, 10, 2001, 3-5.

Field-effect NO₂ Sensors with Group 1B Metal Gates, D. Filippini, M. Rösch, R. Aragon, U. Weimar, Sensors and Actuators B, 81, 2001, 83-87.

Conduction Model of Metal Oxide Gas Sensors, N. Barsan and U. Weimar, Journal of Electroceramics, 7, 2001, 143-167.

Use of a Modified Cyclodextrin Host for the Enantioselective Detection of a Halogenated Diether as Chiral Guest via Optical and Electrical Transducers, B. Kieser, C. Fietzek, R. Schmidt, G. Belge, U. Weimar, V. Schurig, G. Gauglitz, Anal. Chem, 74, 2002, 3005-3012.

Thick film Au-gate field-effect devices sensitive to NO₂, D. Filippini, L. Fraigi, R. Aragon, U. Weimar, Sensors and Actuators B, 81, 2002, 296-300.

Detection of volatile compounds correlated to human diseases through breath analysis with chemical sensors, M. Fleischer, E. Simon, E. Rumpel, H. Ulmer, M. Harbeck, M. Wandel, C. Fietzek, U. Weimar, H. Meixner, Sensors and Actuators B, 83, 2002, 245-249, Conf.Proc. Transducers 01 Munich(FRG) (2001).

Reversible Intercalation of Volatile Amines into Stacks of Soluble Phthalocyanines, C. Fietzek, B. Görlach, M. Seiler, U. Weimar, M. Hanack, C. Ziegler and H. Bertagnolli, J. Mater. Chem., 12, 2002, 2305-2311.

Fuzzy inference system for sensor array calibration: prediction of CO and CH₄ levels in variable humidity conditions, T. Sundic, S. Marco, A. Perera, A. Pardo, S.Hahn, N. Barsan, U. Weimar, Chemometrics, 64, 2003, 103-122.

Sensing of hydrocarbons with tin oxide sensors: Possible reaction path as revealed by consumption measurements, W. Schmid, N. Barsan, U. Weimar, Sensors and Actuators B, 89, 2003, 232-236.

Detection of Antibody Peptide Interaction Using Microcantilevers as Surface Stress Sensors, B.-H. Kim, U. Weimar, R. Brock, D.-P. Kern, Journal of Vacuum Science & Technology B, 21, 2003, 1472-1475.

Understanding the fundamental principles of metal oxide based gas sensors; the example of CO sensing with SnO₂ sensors in the presence of humidity, N. Barsan and U. Weimar, J. Phys. Condens. Matter, 15, 2003, R813-R83.

Corundum-type indium (III) oxide: formation under ambient conditions in Fe₂O₃-In₂O₃ system, A. Gurlo, M. Ivanovskaya, N. Barsan, U. Weimar, Inorganic Chemistry Comm., 6, 2003, 569-572.

CO sensing with SnO₂ thick film sensors: role of oxygen and water vapour, S. Hahn, N. Barsan, U. Weimar, S.G. Ejakov, H.J. Visser, R.E. Soltis,, Thin Solid Films, 436, 2003, 17-24.

Drift studies of thick film un-doped and Pd-doped SnO₂ sensors: temperature changes effect and CO detection mechanism in the presence of water vapour, S. Harbeck, A. Szatvanyi, N. Barsan, U. Weimar and V. Hoffmann, Thin Solid Films, 436, 2003, 76-83.

Polycrystalline Well-Shaped Blocks of Indium Oxide Obtained by the Sol-Gel Method and Their Gas-Sensing Properties, A. Gurlo, N. Barsan, U. Weimar, M. Ivanovskaya, A. Taurino and P. Siciliano, Chem. Mater., 15, 2003, 4377-4383.

CMOS monolithic metal – oxide sensor system comprising a microhotplate and associated circuitry, M. Graf, D.Barrettino, M. Zimmermann, A. Hierlemann, H. Baltes, S. Hahn, N. Barsan and U. Weimar, IEEE Sensors Journal, 4, 2004, 9-16.

Flame spray synthesis of tin dioxide nanoparticles for gas sensing, T.Sahm, L.Mädler, A.Gurlo, N.Barsan, S.E. Pratsinis, U.Weimar, Sensors and Actuators B, 98, 2004, 148-153.

Ambient pressure synthesis of corundum-type In₂O₃, M.Epifani, P.Siciliano, A.Gurlo, N.Barsan, U.Weimar, Journal of the American Chemical Society, 2004.

Trendbericht Physikalische Chemie 2003, Ch. Ziegler, U. Weimar, H.-D. Wiemhöfer, Nachrichten aus der Chemie, 52, 2003, 317.

A p- to n- transition on α-Fe₂O₃-based thick film sensors studied by conductance and work function change measurements, A.Gurlo, M.Sahm, A.Oprea, N.Barsan, U.Weimar, Sensors and Actuators B, 2004.

A n- to p- conductivity transition induced by oxygen adsorption on α-Fe₂O₃, A.Gurlo, N.Barsan, A.Oprea, M.Sahm, T.Sahm, U.Weimar, Applied Physics Letters, 85, 2004, 2280-2282.

Bioanalytical and Medical Trends in Sensor Applications; Organic layers for field effect application, A. Oprea, J. Claußen, C. Fietzek, M. Harbeck, H.-G. Mack and U. Weimar, Technology and Health Care, International Journal of Health Care Engineering, , Special Issue: Abstracts of ESEM 2003, 12/2, 2004, 139-142.

Sensing of hydrocarbons and CO in low oxygen conditions with tin dioxide sensors: possible conversion paths, W. Schmid, N. Barsan, U. Weimar, Sensors & Actuators B,, 103, 2004, 362-368.

TaON and Ta₃N₅ thin films: a new class of gas sensors, O. Merdrignac-Conanec, M. Kerlau, M. Guilloux-Viry, R. Marchand, N. Barsan, U. Weimar, Silicates Industriels, 69, 2004, 141-145.

Monitoring of Oil Aerosol Contamination in Pressurised Air with SnO₂-based Thick Film Sensors in Real Life Conditions, N. Papamichail, N. Barsan, U. Weimar, Sensors and Actuators B, B 106, 2005, 61 - 66.

Water-oxygen interplay on tin dioxide surface: Implication on gas sensing, D. Koziej, N. Barsan, U. Weimar, J. Szuber, K. Shimanoe and N. Yamazoe, Chemical Physics Letters, 410, 2005, 321-323.

Complementary Phenomenological and Spectroscopic Studies of Propane Sensing with Tin Oxide Based Sensors, D. Koziej, N. Barsan, V. Hoffmann, J. Szuber, U. Weimar, Sensors & Actuators B,, 108, 2005, 75-83.

Multisensor System for Characterization of Packaging Emissions: Prediction of Total Solvent Amount and Odor Scores, F. Röck, A. Gurlo, U. Weimar, Analytical Chemistry, 9, 2005, 77, 2762-2769.

Fundamental studies on SnO₂ by means of simultaneous work function change and conductance measurements, T. Sahm, A. Gurlo, N. Barsan, U. Weimar, L. Mädler, Thin Solid Films, 490, 2005, 43-47.

High Sensitivity Acid Films for Ammonia Detection with Field Effect Devices, A. Oprea, U. Weimar, Sensors and Actuators B, 111-112, 2005, 572-576.

Ammonia Detection Mechanism with Polyacrylic Acid Sensitive Layers: Field Effect Transduction, A. Oprea, N. Barsan, U. Weimar, Sensors and Actuators B, 111-112, 2005, 577-581.

Direct formation of highly porous gas-sensing films by in situ thermophoretic deposition of flame-made Pt/SnO₂ nanoparticles, L. Mädler, A. Roessler, S.E. Pratsinis, T. Sahm, A. Gurlo, N. Barsan and U. Weimar, Sensors and Actuators B, 114, 2005, 283-295.

Properties of Indium Oxide Semiconducting Sensors Deposited by Different Techniques, T. Sahm, A. Gurlo, N. Barsan, U.Weimar, Journal of Particulate Science, 24, 2006, 441-452.

Flip-Chip Gate Suspended Field Effect Transistors for Ammonia Detection, A. Oprea, E. Simon, M. Fleischer, H.-P. Frerichs, Wh. Wilbertz, M. Lehmann and U. Weimar, Sensors and Actuators B, 111-112, 2005, 582-586.

Conduction model of SnO₂ thin films based on conductance and Hall effect measurements, A. Oprea, E. Moretton, N. Barsan, W.J. Becker, J. Wöllenstein and U. Weimar, Journal of Applied Physics, 100, 2006, art. no. 033716.

Sensing low concentrations of CO using flame-spray made Pt/SnO₂ nanoparticles, L. Mädler, T. Sahm, A. Gurlo, J.D. Grunwaldt, N. Barsan, U. Weimar and S.E. Pratsinis, J. Nanoparticle Res., 8, 2006, 783-796.

Microfabricated gas sensor systems with nanocrystalline metal-oxide sensitive films, M. Graf, A. Gurlo, N. Barsan, U. Weimar and A. Hierlemann, J. Nanoparticle Res., 8, 2006, 823-839.

Template-free synthesis and assembly of single-crystalline tungsten oxide nanowires and their gas-sensing properties, J. Polleux, A. Gurlo, N. Barsan, U. Weimar, M. Antonietti and M. Niederberger, Angewandte Chemie, 44, 2005, 1-6.

not used, 0, 0, 2005.

Preparation and characterization of gallium (oxy)nitride powders. Preliminary investigation as new gas sensor materials, M. Kerlau, O. Merdrignac-Conanec, P. Reichel, N. Barsan, U. Weimar, Sensors and Actuators B, 115, 2006, 4-11.

MEMS Gas-Sensor Array for Monitoring the Perceived Car-Cabin Air Quality, M. Blaschke, T. Tille, P. Robertson, S. Mair, U. Weimar, H. Ulmer, IEEE Sensors Journal, 6, 2006, 1298-1308.

On-Line Novelty Detection by Recursive Dynamic Principal Component Analysis and Gas Sensor Arrays Under Drift Conditions, A. Perera, N. Papamichail, N. Barsan, U. Weimar, S. Marco, IEEE Sensors Journal, 6, 2006, 770-783.

Comparative Analysis of Volatile Constituents from Mice and their Urine, F. Röck, S. Müller, U. Weimar, H-G. Rammensee, P. Overath, J Chem Ecol, 32, 2006, 1333-1346.

Copper phthalocyanine suspended gate field effect transistors for NO₂ detection, A. Oprea, U. Weimar, E. Simon, M. Fleischer, H.-P. Frerichs, Ch. Wilbertz, M. Lehmann, Sensors and Actuators B, 118, 2006, 249-254.

Basics of oxygen and SnO₂ interaction, work function change and conductivity measurements, T. Sahm, A. Gurlo, N. Barsan and U. Weimar, Sensors and Actuators B, 118, 2006, 78-83.

Spectroscopic insights into CO sensing of undoped and palladium doped tin dioxide sensors derived from hydrothermally treated tin oxide sol, D. Koziej, N. Barsan, K. Shimanoe, N. Yamazoe, J. Szuber,and U. Weimar, Sensors & Actuators B,, 118, 2006, 98-104.

Formation of Multilayer Films for Gas-sensing by In-situ Thermophoretic Deposition of Nanoparticles from Aerosol Phase, T.Sahm, W. Rong, N. Barsan, L. Maedler, S. Friedlander and U. Weimar, Journal of Materials Research, 4, 2007, 22, 850-857.

Detection of propane by “GaON” thick-film gas sensors, M. Kerlau, P. Reichel, N. Barsan, U. Weimar, S. Delsarte-Guéguen and O. Merdrignac-Conanec, Sensors and Actuators B, 122, 2007, 14-19.

Elektronische Nase und Signalgewinnung, J. Mitrovics, F. Röck and U. Weimar, Technisches Messen, 74, 2007, 157-165.

Influence of annealing temperature on the CO sensing mechanism for tin dioxide based sensors – Operando studies, D. Koziej, K. Thomas, N. Barsan, F. Thibault–Starzyk and U. Weimar, Catalysis Today, 126, 2007, 211-218.

Hybrid gas sensor platform based on capacitive coupled field effect transistors: Ammonia and nitrogen dioxide detection, A. Oprea, H.-P. Frerichs, Ch. Wilbertz, M. Lehmann and U. Weimar, Sensors and Actuators B, 127, 2007, 161-167.

Water and ammonia influence on the conduction mechanisms in polyacrylic acid films, M. Sahm, A. Oprea, N. Barsan and U. Weimar, Sensors and Actuators, B 127, 2007, 204-209.

Characterization of granular metal oxide semiconductor gas sensitive layers by using Hall effect based approaches, A. Oprea, N. Barsan and U. Weimar, J. Phys. D: Appl. Phys., 40, 2007, 7217-7237.

Interdependence of Ammonia and Water Sorption in Polyacrylic Acid Layers, M. Sahm, A. Oprea, N. Barsan, U. Weimar, Sensors & Actuators B, 130, 2008, 502-507.

Capacitive Humidity Sensors on Flexible RFID Labels, A.Oprea, N. Barsan, U. Weimar, M.-L. Bauersfeld, D. Ebling, J. Wöllenstein, Sensors & Actuators B, 132, 2008, 404-410.

Limitations on the use of perovskite-structure oxides in gas sensing as a result of the concurrent operation of separate mechanisms, P.T. Moseley, A. Oprea, O. Merdrignac-Conanec, M. Kerlau, N. Barsan, U.Weimar, Sensors and Actuators B 133, 2008, 543–546.

Investigations of conduction mechanism in Cr₂O₃ gas sensing thick films by ac impedance spectroscopy and work function changes measurements, S. Pokhrel, C.E. Simion, V. Quemener, N. Barsan, U. Weimar, Sensors and Actuators B 133, 2008, 78-83.

Kelvin Probe measurements of polymer coated gold substrates: Mechanism studies, M. Hoerter, A. Oprea, N. Barsan, U. Weimar, Sensors and Actuators B, 134, 2008, 266-272.

Chemical interaction of gaseous ammonia and water vapour with polyacrylic acid layers, M. Hoerter, A. Oprea, N. Barsan, U. Weimar, Sensors and Actuators B, 134, 2008, 743-749.

Transport and gas sensing properties of In₂O₃ nanocrystalline thick films: A Hall effect based approach, A. Oprea, A. Gurlo, N. Barsan, U. Weimar, Sensors and Actuators B, 139, 2009, 322-328.

Temperature, humidity and gas sensors integrated on plastic foil for low power applications, A. Oprea, J. Courbat, N. Barsan, D. Briand, N.F. de Rooij, U. Weimar, Sensors and Actuators B, 140, 2009, 227-232.

Work function changes in gas sensitive materials: Fundamentals and applications, A. Oprea, N. Barsan and U. Weimar, Sensors and Actuators B, 142, 2009.

Neodymium Dioxide Carbonate as a Sensing Layer for Chemoresistive CO2 Sensing, I. Djerdj, A. Haensch, D. Koziej, S. Pokhrel, N. Barsan, U. Weimar, M. Niederberger, Chemistry of Materials, 21, 2009, 5375-5381.

Modeling of sensing and transduction for p-type semiconducting metal oxide gased gas sensors, N. Barsan, C. Simion, T. Heine, S. Pokhrel, U. Weimar, Journal of Electroceramics, 25, 2010, 11-19.

Influence of Material Properties on Hydrogen Sensing for SnO₂ Nanomaterials, M. Hübner, R. Pavelko, J. Kemmler, N. Barsan, U. Weimar, Procedia Chemistry, 1-1, 2009, 1423-1426.

Operando X-ray absorption spectroscopy studies on Pd-SnO₂ based sensors, D. Koziej, M. Hübner, N. Barsan, U. Weimar, M. Sikora, J.D. Grunwaldt, Phys. Chem. Chem. Phys., 11-38, 2009, 8620–8625.

Microporous ceramic coated SnO₂ sensors for hydrogen and carbon monoxide sensing in harsh reducing conditions, R. M. Prasad, A. Gurlo, R. Riedel, M. Hübner, N. Barsan, U. Weimar, Sensors and Actuators B: Chemical, 149-1, 2010, 105-109.

Nanoscale SnO₂ Hollow Spheres and its Application as a Gas Sensing Material, F. Gyger, M. Hübner, C. Feldmann, N. Barsan, U. Weimar, Chemistry of Materials, 22-16, 2010, 4821-4827.

CO sensing mechanism with WO₃ based gas sensors, M. Hübner, C.E. Simion, A. Haensch, N. Barsan, U. Weimar, Sensors and Actuators B: Chemical, 151, 2010, 103-106.

BaTi_0,95Rh_0,05O₃ catalytic filter – a promising candidate for the selective detection of CO in the presence of H₂, M. Hübner, A. Yuece, G.C. Mondragon, B. Saruhan, N. Barsan, U. Weimar, Procedia Engineering, 5, 2010, 107-110.

System for dosing formaldehyde vapor at the ppb level, F. Roeck, N. Barsan and U. Weimar, Measurement Science and Technology 21-11, article 115201, 2010.

Struktur und Verhalten von Platin in SnO₂-basierten Gassensoren unter realistischen Arbeitsbedingungen, M. Hübner, D. Koziej, M. Bauer, N. Barsan, K. Kvashnina, M. Rossell, U. Weimar , J.-D. Grunwaldt, Angewandte Chemie, 123, 2011, 2893-2896.

Influence of humidity on CO sensing with p-type CuO thick film gas sensors, M. H?bner, C.E. Simion, A. Tomescu-Stanoiu, S. Pokhrel, N. Barsan, U. Weimar, Sensors and Actuators B. Chemical, 153, 2011, 347-353.

Influence of Oxygen Backgrounds on Hydrogen Sensing with SnO₂ Nanomaterials, M. Hübner,R. Pavelko, N. Barsan, U. Weimar, Sensors and Actuators B: Chemical, 154, 2011, 264-269.

Conduction mechanism in SnO₂ based polycrystalline thick film gas sensors exposed to CO and H₂ in different oxygen backgrounds, N. Barsan, M. Hübner, U. Weimar, Sensors and Actuators B. Chemical, 157, 2011, 510-517.

Enhancing performance of FSP SnO ₂ based gas sensors through Sb-doping and Pd-functionalization, Katharina Großmann, Krisztina E. Kovács, David K. Pham, Lutz Mädler, Nicolae Barsan, Udo Weimar, Sensors and Actuators B: Chemical, 2011, 127, 388-392.

The Influence of Pt Doping on the Sensing and Conduction Mechanism of SnO₂ Based Thick Film Sensors, M. Hübner, S. Hafner, N. Barsan, U. Weimar, Procedia Engineering, 25, 2011, 104-107.

Quenched, nanocrystalline In₄ Sn₃ O₁₂ high temperature phase for gas sensing applications, Jens A. Kemmler, Suman Pokhrel, Johannes Birkenstock, Marco Schowalter, Andreas Rosenauer, Nicolae Bârsan, Udo Weimar, Lutz Mädler, Sensors and Actuators B, 161, 2012, 740-747.

Interplay of H₂ , water vapor and oxygenat the surface of SnO₂ based gas sensors – An operando investigation utilizing deuterated gases, K. Großmann, R. Pavelko, N. Barsan, U. Weimar, Sensors and Actuators B: Chemical, 166-167, 2012, 172-180.

Influences of Al, Pd and Pt additives on the conduction mechansim as well as the surface and bulk properties of SnO₂ based polycrystalline thick film gas sensors, M. Hübner, N. Barsan, U. Weimar, Sensors and Actuators B: Chemical, 171-172, 2012, 172-180.

An Au clusters related spill-over sensitization mechanism in SnO(₂)-based gas sensors identified by operando HERFD-XAS, work function changes, DC resistance and catalytic conversion studies, M. Hübner, D. Koziej, J.D. Grunwaldt, U. Weimar, N. Barsan, Phys. Chem. Chem. Phys., 14-38, 2012, 13249-54.

Nonconventional phthalocyanines for field effect gas detection, W. Simmendinger, A. Oprea, N. Barsan, U. Weimar, Sensors and Actuators B: Chemical, Elsevier, 179, 2013, 54-60.

Contribution of polymeric swelling to the overall response of capacitive gas sensors, U. Altenberend, A. Oprea, N. Barsan, U. Weimar, Analytical and Bioanalytical Chemistry, Vol. 405, 2013, 6445-6452.

Co₃ O₄ - A systematic investigation of catalytic and gas sensing performance under variation of temperature, humidity, test gas and test gas concentration, S. Wicker, K. Großmann, N. Barsan, U. Weimar, Sensors and Actuators B: Chemical, 185, 2013, 644-650.

Impact of Pt additives on the surface reactions between SnO2, water vapour, CO and H2; an operando investigation, K. Großmann, S. Wicker, U. Weimar, N. Barsan, Phys. Chem. Chem. Phys. , 15, 2013, 19151-58.

Towards fully printed capacitive gas sensors on flexible PET substrates based on Ag interdigitated transducers with increased stability, U. Altenberend, F. Molina-Lopez, A. Oprea, D. Briand, N. Barsan, N. F. De Rooij, U. Weimar, Sensors and Actuators B: Chemical, 187, 2013, 280-287.

Flame spray pyrolysis for sensing at the nanoscale, J. Kemmler, S. Pokhrel, L. Mädler, U. Weimar, N. Barsan, Nanotechnology, 24, 2013, 1-14.

Conduction mechanism in undoped and antimony doped SnO2 based FSP gas sensors, J. Rebholz, P. Bonanati, C. Jaeschke, M. Hübner, L. Mädler, U. Weimar, N. Bârsan, Sensors and Actuators B: Chemical, 188, 2013, 631-636.

Pd@SnO2 and SnO2@Pd Core@shell Nanocomposite Sensors, F. Gyger, A. Sackmann, M. Hübner, P. Bockstaller, D. Gerthsen, Henning Lichtenberg, J. – D. Grunwaldt, N. Barsan, U. Weimar, C. Feldmann, Particle & Particle Systems Characterization, 31, 2014, 591-596.

Grain shape influence on semiconducting metal oxide based gas sensor performance: modeling versus experiment, J. Rebholz, P. Bonanati, U. Weimar, N. Bârsan, Analytical and Bioanalytical Chemistry, 406, 2014, 3977-83.

Sn0.9−xIn0.1Cux(I)O2−δ gas sensors with selectivity to H2S working under humid air conditions, S. Somacescu, P. Osiceanu, J. Calderon-Moreno, A. Sackmann, C. E. Simion, A. Stănoiu, Mesopororous Microporous and Mesoporous Materials, 197, 2014, 63-71.

Conduction mechanism switch for SnO2 based sensors during operation in application relevant conditions; implications for modeling of sensing, N. Barsan, J. Rebholz, U. Weimar, Sensors and Actuators B: Chemical, 207, 2015, 455–459.