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Proceedings Paper

Gas sensing by resistance fluctuations in PdxWO3 nanoparticle films
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Paper Abstract

Nanoparticle films of PdxWO3, with x being 0.01 or 0.12, were made by dual-beam gas deposition. Resistance noise as well as dc resistance were measured during exposure to ethanol and hydrogen gas. For ethanol concentrations exceeding 50 ppm, changes in the resistance noise gave 300 times larger detection sensitivity than changes in the dc resistance. This sensitivity reached a maximum at 250 °C and was very reproducible for ethanol sensing.

Paper Details

Date Published: 25 May 2004
PDF: 9 pages
Proc. SPIE 5472, Noise and Information in Nanoelectronics, Sensors, and Standards II, (25 May 2004); doi: 10.1117/12.547362
Show Author Affiliations
Jesper Ederth, Uppsala Univ. (Sweden)
Janusz M. Smulko, Gdansk Univ. of Technology (Poland)
Laszlo B. Kish, Texas A&M Univ. (United States)
Peter Heszler, Uppsala Univ. (Sweden)
Gunnar Niklasson, Uppsala Univ. (Sweden)
Claes-Goran Granqvist, Uppsala Univ. (Sweden)

Published in SPIE Proceedings Vol. 5472:
Noise and Information in Nanoelectronics, Sensors, and Standards II
Janusz M. Smulko; Yaroslav Blanter; Mark I. Dykman; Laszlo B. Kish, Editor(s)

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