Journal of the Ceramic Society of Japan, Supplement
Online ISSN : 1349-2756
ISSN-L : 1349-2756
Journal of the Ceramic Society of Japan, Supplement 112-1, PacRim5 Special Issue
Session ID : 7
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CO Sensing Properties of ZnO-SnO2 Composite Thin Films Prepared by the Sol-Gel Method
Masashi SHOYAMANoritsugu HASHIMOTO
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Abstract
ZnO-SnO2 composite thin film was prepared by the sol-gel method using a multi component precursor solution. The CO sensing characteristics of ZnO-SnO2 composite thin film were examined. ZnO addition to the SnO2 thin film was very effective to improve the CO sensitivity and the selectivity at the operating temperature range of 200°C to 500°C. The CO sensitivity of the ZnO (50 mol%)-SnO2 thin film increased as operating temperature decreased, and it showed maximum sensitivity of 587 at 200°C.
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© 2004 The Ceramic Society of Japan
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