Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5353149 | Applied Surface Science | 2016 | 9 Pages |
Abstract
Preliminary tests of the copper oxide films as an active layer of a chemiresistor were also performed. Hydrogen and methanol vapours, with a concentration of 1000 ppm, were detected by the sensor at an operating temperature of 300 °C and 350 °C, respectively. The response of the sensors, pointed at the p-type conductivity, was improved by the addition of thin Pd or Au catalytic films to the oxidic film surface. Pd-covered films showed an increased response to hydrogen at 300 °C, while Au-covered films were more sensitive to methanol vapours at 350 °C.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
P. Horak, V. Bejsovec, J. Vacik, V. Lavrentiev, M. Vrnata, M. Kormunda, S. Danis,