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Proceedings Paper

Gas sensor development at BARC
Author(s): A. K. Debnath; V. R. Katti; K. P. Muthe; S. C. Gadkari; S. C. Sabharwal; Vinod C. Sahni
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Paper Abstract

Thin films of SnO2 when suitable doped are used for the detection of H2S and H2 gases. The results of the characterization showed that the gas sensing properties of the films are governed by the micro-structure, dopant used and the operating temperature of the film. For the H2S gas sensors developed, the observed change in the conductivity for 10 ppm gas concentration was approximately 104. By suitably altering the film resistance at ambient temperature, SnO2 based sensors have been developed which can detect 100 ppb H2S gas present in the environment.

Paper Details

Date Published: 16 April 1998
PDF: 4 pages
Proc. SPIE 3321, 1996 Symposium on Smart Materials, Structures, and MEMS, (16 April 1998); doi: 10.1117/12.305566
Show Author Affiliations
A. K. Debnath, Bhabha Atomic Research Ctr. (India)
V. R. Katti, Bhabha Atomic Research Ctr. (India)
K. P. Muthe, Bhabha Atomic Research Ctr. (India)
S. C. Gadkari, Bhabha Atomic Research Ctr. (India)
S. C. Sabharwal, Bhabha Atomic Research Ctr. (India)
Vinod C. Sahni, Bhabha Atomic Research Ctr. (India)

Published in SPIE Proceedings Vol. 3321:
1996 Symposium on Smart Materials, Structures, and MEMS
Vasu K. Aatre; Vijay K. Varadan; Vasundara V. Varadan, Editor(s)

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