Selectivity enhancement of SnO2 gas sensors: simultaneous monitoring of resistances and temperatures
作者： A Heilig , N Barsan , U Weimar , W Göpel
DOI: 10.1016/S0925-4005(99)00091-X
关键词: Temperature measurement 、 Analytical chemistry 、 Tin dioxide 、 Selectivity 、 Materials science 、 Humidity
摘要: Abstract We present results obtained with microstructured tin dioxide-based gas sensors. Thick films controlled nanocrystallite sizes were deposited on micromachined substrates. Discrimination between CO, CH 4 , and C 2 H 5 OH, in changing humidity conditions was achieved by simultaneously measuring temperature resistance changes upon exposure. These make it possible to fulfil the American European safety standards for CO detection dioxide based The physico-chemical origin of are discussed.
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