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Semiconductor Gas Sensors
book

Semiconductor Gas Sensors

by R Jaaniso, O Tan
August 2013
Intermediate to advanced
576 pages
17h 9m
English
Woodhead Publishing
Content preview from Semiconductor Gas Sensors
2

Conduction mechanism in semiconducting metal oxide sensing films: impact on transduction

N. Bârsan, M. Huebner and U. Weimar,     University of Tübingen, Germany

Abstract:

This chapter gives an overview of the conduction mechanisms in semiconducting metal oxide (SMOX) sensing films and their impact on the transduction of surface chemistry into a measurable sensor signal (relative change of resistance). Following general discussion on the functioning of sensors based on SMOX porous, sensing films, modelling of the conduction in p- and n-type materials is performed. The theoretical results explain why the sensor signals are lower for p-type oxides when compared with n-type oxides. The modelling concepts are verified by applying them to experimental ...

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Publisher Resources

ISBN: 9780857092366