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Showing papers by "Sunkara V. Manorama published in 1994"


Journal ArticleDOI
TL;DR: In this article, the band theory of solids has been used to explain the change in conductivity of SnO2 films upon exposure to H2S gas in air, which has been shown to be a useful technique for sensing hydrogen sulfide and methyl mercaptan.
Abstract: Spray pyrolysis and microwave plasma chemical vapor deposition techniques have been employed successfully for the deposition of CuO impregnated SnO2 films suitable for sensing hydrogen sulfide and methyl mercaptan. The observed change in conductivity of these films upon exposure to H2S gas in air has been explained on the basis of the band theory of solids.

86 citations