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  4. Gas dependent changes in the electrical behavior of selective metal-oxide layers
 
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2014
Journal Article
Titel

Gas dependent changes in the electrical behavior of selective metal-oxide layers

Abstract
To overcome the lack of selectivity in semiconducting metal-oxide based sensors material research plays a crucial role. The fundamental understanding of the surface effects and the respective underlying processes is necessary for a future exploitation as sensing principle. Recently, copper(II)oxide (CuO) gained increased interest due to the highly selective reaction towards hydrogen sulfide (H<inf>2</inf> S). However, the profound shifts in material properties make reliable data acquisition very challenging. We present some of the current results on CuO and a measurement technique to precisely monitor the changes in the overall electronic characteristics. The phase transition from semiconducting to conducting behavior in CuO sensing layers is measured in-situ under H<inf>2</inf>S exposure, thereby deepening the understanding of the underlying interactions.
Author(s)
Kneer, J.
Wöllenstein, J.
Palzer, S.
Zeitschrift
Procedia Engineering
Konferenz
European Conference on Solid-State Transducers (Eurosensors) 2014
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DOI
10.1016/j.proeng.2014.11.712
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Externer Link
Language
English
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Fraunhofer-Institut für Physikalische Messtechnik IPM
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