Work function gas sensors

Burgmair M, Zimmer M, Eisele I (2003) Humidity and temperature compensation in work function gas sensor FETs. Sens Actuators B 93 271-275... 

Zimmer M, Buigmair M, Schamagl K, Karthigeyan A, DoU T, Eisele I (2001) Gold and platinum as ozone sensitive layer in work-function gas sensors. Sens Actuators B 80 174-178 Zisman WA (1932) A new method of measuring contact potential differences in metals. Rev Sd Instrum 3 367—370... 

Ostrick, B., MUhlsteff, J., Fleischer, M., Meixner, H., Doll, T. and Kohl, C. (1999), Adsorbed water as key to room temperature gas-sensitive reactions in work function type sensors the carbonate-carbon dioxide system Sensors and Actuators B Chemical, 57,1-3,115-19. 

Oprea A, Simon E, Fleischer M, Frerichs H-P, Wilbertz C, Lehmann M, Weimar U (2005) Flip-chip suspended gate field effect transistors for ammonia detection. Sens Actuators B 111 582-586 Ostrick B, Mlihlsteff J, Fleischer M, Meixner H, DoU T, Kohl C-D (1999) Adsorbed water as key to room temperature gas sensitive reactions in work function type sensors the carbonate-carbon dioxide system. Sens Actuators B 57 115-119 Ostrick B, Fleischer M, Meixner H, Kohl C-D (2000a) Investigation of the reaction mechanisms, in work function type gas sensors at room temperature by studies of the cross sensitivity to oxygen and water the carbonate-carbon dioxide system. Sens Actuators B 68 197-202... 

Ostrick B, Pohle R, Fleischer M, Meixner H (2000b) TiN in work function type sensors a stable ammonia sensitive material for room temperature operation with low humidity cross sensitivity. Sens Actuators B 68 234-239 Ostrick B, Fleischer M, Meixner H (2003) The influences of interfaces and interlayers on the gas sensitivity in work function type sensors. Sens Actuators B 95 271-274... 

N. Barsan, A. HeUig, J. Kappler, U. Weimar, and W. Gopel. CO-water interaction with Pd-doped Sn02 gas sensors simultaneous monitoring of resistances and work functions , Proc. Eurosensors XIII, The Hague, Netherlands (1999), 183-184. 

If a conductor material undergoes a work function change when exposed to a certain chemical species, then clearly one has the foundations of a C-S diode sensor. However, this sensor cannot be made to function if the conductor chemically reacts with the semiconductor. This loss of sensitivity occurs because the new material resulting from the reaction, in general, will not have the same work function sensitivity to the chemical species as the conductor has. The C-I-S configuration solves this problem since a properly chosen I-layer, capable of supporting an electrical current, can be inserted between the conductor and semiconductor to prevent their reaction. The resultant C-I-S structure is able to respond to the effects of the gas species on the conductor. 

Correlation for the zirconia gas sensor function List of the influential factors and the parameters of their work functions Dependence of arguments on the influential factors involving into the zirconia sensor function... 

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