Growth, Characterization and technological applications of semiconductor SnO<inf>2</inf>nanotubes and In<inf>2</inf>O<inf>3</inf>nanowires

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Journal Article
Journal of Nanoscience and Nanotechnology, 2009, 9 (2), pp. 1144 - 1147
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Tin dioxide nanotubes (200 nm in diameter) were synthesised by the sol-gel template method. The gas sensitivity of SnO2nanotubes has been investigated. Due to the small grain size and large amount of grain boundary, SnO2nanotubes demonstrated good sensitivity in sensing ethanol gas and had an ability to detect ammonia gas without any doping or surface modification. In2O3semiconductor nanowires were synthesized efficiently by the chemical vapor deposition method through carbon thermal reduction. The diameter, length and morphologies of In2O3nanowires can be varied by controlling the synthetic conditions. The In2O3nanowires were characterized by field emission scanning electron microscopy (FE-SEM) and high resolution transmission electron microscopy (HRTEM). The application of In203 nanowires for gas sensors was tested. Copyright © 2009 American Scientific Publishers All rights reserved.
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