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Semiconductor Gas Sensors by O Tan, R Jaaniso

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3

Electrode materials and electrode-oxide interfaces in semiconductor gas sensors

S.P. Lee,     Kyungnam University, KoreaUSA

Abstract:

The electrodes used in a gas sensor allow contact to be made to the sensing material itself so that its electrical properties can be measured. They require mechanical and chemical stability with the substrate and an optimal geometry for detecting the response of sensors to gases. This chapter provides some background to the electrode materials for semiconductor gas sensors, including the chemistry of electrode-oxide semiconductor interfaces, the transport mechanism across the junction and gas/solid interactions in the interfaces.

Key words

electrode materials

electrode-oxide interfaces in gas sensors

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