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Deposition of tungsten oxide and silver decorated tungsten oxide for use in oxygen gas sensing

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Sari, Wangi P., Blackman, Chris, Zhu, Yiyun and Covington, James A. (2017) Deposition of tungsten oxide and silver decorated tungsten oxide for use in oxygen gas sensing. In: 2017 IEEE Sensors, Glasgow, UK, 29 Oct-1 Nov 2017. Published in: 2017 IEEE Sensors pp. 1-3. ISBN 9781509010127. doi:10.1109/ICSENS.2017.8234313

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Official URL: http://dx.doi.org/10.1109/ICSENS.2017.8234313

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Abstract

Tungsten oxide and silver-decorated tungsten oxide were investigated for the detection of oxygen in a humid environment. The sensor materials were deposited onto alumina sensor substrates via aerosol-assisted chemical vapour deposition. Results indicated that our sensors showed good sensitivity to oxygen, following an almost a linear relationship over a 0 to 20% concentration range. In comparison to WO3, the Ag-decorated sensors showed a much higher sensitivity and better response (sensitivity of 0.22 per %O2 vs 0.80 per %O2 for Ag decorated), making Ag-WO3 based sensors an interseting alternative to existing Pb-based sensors for quantitative oxygen sensing.

Item Type: Conference Item (Paper)
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH): Gas detectors, Tungsten oxides
Journal or Publication Title: 2017 IEEE Sensors
Publisher: IEEE
ISBN: 9781509010127
Book Title: 2017 IEEE SENSORS
Official Date: 25 December 2017
Dates:
DateEvent
25 December 2017Published
20 July 2017Accepted
Page Range: pp. 1-3
DOI: 10.1109/ICSENS.2017.8234313
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Conference Paper Type: Paper
Title of Event: 2017 IEEE Sensors
Type of Event: Conference
Location of Event: Glasgow, UK
Date(s) of Event: 29 Oct-1 Nov 2017

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