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Preparation of multi-compositional gas sensing films by combinatorial solution deposition

Authors
Kim, Sun-JungCho, Pyeong-SeokLee, Jong-HeunKang, Chong-YunKim, Jin-SangYoon, Seok-Jin
Issue Date
May-2008
Publisher
ELSEVIER SCI LTD
Keywords
films; composites; electrical properties; sensors
Citation
CERAMICS INTERNATIONAL, v.34, no.4, pp.827 - 831
Indexed
SCIE
SCOPUS
Journal Title
CERAMICS INTERNATIONAL
Volume
34
Number
4
Start Page
827
End Page
831
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/123681
DOI
10.1016/j.ceramint.2007.09.031
ISSN
0272-8842
Abstract
Various compositions of gas sensing films were prepared by the combinatorial deposition of SnO2, ZnO, and WO3 sol solutions and their gas sensing behaviors were investigated. The film composition could be manipulated conveniently via the alternate dropping of different oxide sol solutions. From the correlation between film compositions and gas sensitivities, the selective detection Of C2H5OH and CH3COCH3 in the presence Of CO, C3H8, H-2, and NO2 could be attained. In addition, the discrimination between C2H5OH and CH3COCH3, which is a challenging issue due to their similar chemical nature, becomes possible. This research demonstrates the precise design of the sensor-material composition for the selective gas detection via the combinatorial approach. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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