Potential-Controlled Gas-Sensor Devices

State of the Art and Trends
  • J. Kappler
  • U. Weimar
  • W. Göpel
Chapter

Abstract

In spite of extensive research and development of conductivity-controlled gas sensing, corresponding potential-controlled gas sensing has so far been investigated and applied in practical devices only in a few cases [1–4]. This is surprising since conductivity changes are always related with potential changes. The latter may in principle be measured very sensitively as it has been illustrated in many laboratory-type experiments e.g. using the chemical Kelvin probe setup [5–7]. In addition, the straight-forward understanding of electrical potentials on the basic science level is usually easier if compared with the corresponding understanding of conductivities.

Keywords

Clay Hydroxyle Palladium Calcination Chemisorption 

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References

  1. [1]
    W. Göpel, Technologien für die chemische und biochemische Sensorik, Conf. Proc. Sensor 88, Technolgietrends in der Sensorik, Hellmich KG, Berlin (FRG) 1988, p. 257Google Scholar
  2. [2]
    H. H. Van Der Vlekkert: Field effect gas sensors, Sensors: A Comprehensive Survey, Vol. 2 Chap. 10, VCH Weinheim (1991)Google Scholar
  3. [3]
    W. Göpel, Elektrochemische Sensoren und Molekularelektronik, Dechema Monographie, Vol. 117, VCH, Weinheim (FRG) 1989, p. 9, ISBN 3-527-10220-5Google Scholar
  4. [4]
    W. Göpel, G. Reinhardt, Metal Oxide Sensors: New Devices through tailoring interfaces on atomic scale, in: H Baltes, W. Göpel, J. Hesse (series eds.), Sensors Update: Sensor Technology-Applications-Markets, Vol. 1, VCH, Weinheim (FRG) 1996Google Scholar
  5. [5]
    B. Flietner and I. Eisele, Work function measurements for gas detection using tin oxide layers with a thickness between 1 and 200nm, Thin Solid Films 250 (1994), 258–262CrossRefGoogle Scholar
  6. [6]
    H. Baumgärtner, H. D. Liess, Micro Kelvin Probe for work function measurements, Rev. Sci. Instrum. 59 (5), May 1988Google Scholar
  7. [7]
    K. D. Schierbaum, R. Kowalkowski, U. Weimar and W. Göpel, Conductance, work function and catalytic activity on Sn02-based gas sensors, Sensors and Actuators B 3(1991)205–214CrossRefGoogle Scholar
  8. [8]
    W. Hotan, W. Göpel, R. Haul, Interaction of C02 and CO with nonpolar zincoxide surfaces, Surf. Sci. 83 (1979) 162–180CrossRefGoogle Scholar
  9. [9]
    W. Henzler, W. Göpel, Oberflächenphysik des Festkörpers, B G Teubner Stuttgart (1991)Google Scholar
  10. [10]
    U. Weimar, Dissertationsarbeit, Universität Tübingen 1993Google Scholar
  11. [11]
    W. Göpel, Chemisorption and charge transfer at ionic semiconductor surfaces: implications in designing gas sensors, Progress in surface science Vol. 20 (1) (1985) 9–103CrossRefGoogle Scholar
  12. [12]
    K. D. Schierbaum, X Wie-Xing and W. Göpel, Solid/gas interaction of surface doped oxides: C-V, I-V, XPS, UPS, ELS studies on Pt/Ti02 Pd/Sn02 (110), Ber. Bunsenges. Phys. Chem. 97 (1993), 363–368CrossRefGoogle Scholar
  13. [13]
    D. Ottenbacher,Grenzflächen-und Leitfähigkeitsuntersuchungen an Halbleiterschicht-systemen mit Ta205 und PbPc, Diplomarbeit Tübingen (1989)Google Scholar
  14. [14]
    W. Göpel, Reactivity, electronic structures and geometry of nonpolar zincoxide surfaces, Ber. Bunsenges. Phys. Chem. 82 (1978) 744–756CrossRefGoogle Scholar
  15. [15]
    W. Göpel, L. J. Brillson, C F. Brucker, Surface point defects and schottky barrier formation on ZnO(1010), J. Vac. Sci. Technol. 17 (1980) 894–989CrossRefGoogle Scholar
  16. [16]
    W. Göpel, Charge transfer reactions on semiconductor surfaces, in: J. Treusch (Ed.), Festkörperprobleme: Advances in solid state physics, Vol. XX, Vieweg, Braunschweig (FRG) 1980,177–227Google Scholar
  17. [17]
    J. Janata, M. Josowicz, Analytical Chemistry 1997, 69, 293 A–296 ACrossRefGoogle Scholar
  18. [18]
    N. Barsan, A. Heilig, J. Kappler, U. Weimar, and W. Göpel, CO-Water Interaction with Pd-doped Sn02 Gas Sensors: Simultaneous Monitoring of Resistances and Work Functions, Conf. Proc. EUROSENSORS XIII, The Hague (The Netherlands), ISBN 90-76699-01-1 (9/1999) 183–184.Google Scholar
  19. [19]
    A. Diéguez, A. Romano-Rodríguez, J.L. Alay, J.R. Morante, N. Bârsan, J. Kappler, U. Weimar and W. Göpel, Highly-sensitive nanocrystalline Sn02 gas sensor: parameter optimisation of sol-gel preparation, powder calcination, film preparation, preageing and measurement conditions, 7th IMCS Bejing (1998), technical digest, in printGoogle Scholar
  20. [20]
    I. Lundström, M. S. Shivaraman, C. Svensson and L. Lundkvist, Applied Phys. Letter 26(1975)55CrossRefGoogle Scholar
  21. [21]
    S. K. Andreev, L. I. Popova, V. K. Gueorguiev, G. D. Beshkov, Characteristics and gas sensing behaviour of a tin-oxide-gate FET, Sensors and Actuators B, 8 (1992), 89–91CrossRefGoogle Scholar
  22. [22]
    R. W. Murray, in Electranalytical Chemistry, A. J. Bard (Ed.), N Dekker, NY (1984), Vol.13Google Scholar
  23. [23]
    A. Spetz, U. Helmerson, F. Enquist, M. Armgarth, I. Lundström, Thin solid films 177 (1989), 77–93CrossRefGoogle Scholar
  24. [24]
    J. Janata, M. Josowicz, Anal. Chem. 58, 514 (1986)CrossRefGoogle Scholar
  25. [25]
    G. J. Mac Clay, MOS hydrogen sensors with ultrathin layers of Pd, IEEE trans. Electron devices Vol. ED 32, (1985), 1158–1164CrossRefGoogle Scholar
  26. [26]
    A. Heilig, N. Barsan, U. Weimar and W. Göpel, Selectivity Enhancement of Sn02 Gas Sensors: Simultaneous Monitoring of Resistances and Temperatures, Conf. Proc.Eurosensors XII, Southampton (UK) ISBN 0-7503-0536-3 (9/1998) 633–636; Sensors and Actuators B, 58 (1999) 302–309.Google Scholar
  27. [27]
    R. Mäckel, H. Baumgärtner, and J. Ren, The scanning Kelvin microscope, Rev. Sci. Instrum. 64 (3), March 1999 694–699.CrossRefGoogle Scholar
  28. [28]
    J. Lü, M. Guggisberg, R. Lüthi, L. Scandella, Ch. Gerber, H.-J. Güntherodt, Surface potential studies using Kelvin force spectroscopy, Appl. Phys. A 66 (1998) 273–275CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • J. Kappler
    • 1
  • U. Weimar
    • 1
  • W. Göpel
    • 1
  1. 1.Institute of Physical and Theoretical ChemistryCenter of Interface Analysis and SensorsUniversity of TübingenTübingenGermany

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