Thermoelectric oxides semiconducting

The direct thermoelectric gas sensors introduced in the preceding sections were based on semiconducting oxide materials. However, other materials besides electronic conductors can be employed as materials for DTEGs. Several years ago, it was shown that the thermopower p of an electrochemical cell with Ft electrodes separated by an oxygen ion conductor follows Equation [7.23] (e.g. Ahlgren and Poulsen, 1995) ... 

Rettig, F. and Moos, R. (2010), a-iron oxide An intrinsically semiconducting oxide material for direct thermoelectric oxygen sensors. Sensors and Actuators B Chemical, 145(2), 685-90. 

Rettig F, Moos R (2007b) Direct thermoelectric hydrocarbon gas sensors based on SnO. IEEE Sens J 7 1490-1496 Rettig F, Moos R (2008) Morphology dependence of thermopower and resistance in semiconducting oxides with space charge regions. Solid State Ionics 179 2299-2307... 

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