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Room-temperature gas sensors based on gallium nitride nanoparticles

Chitara, Basant and Late, Dattatray J and Krupanidhi, SB and Rao, CNR (2010) Room-temperature gas sensors based on gallium nitride nanoparticles. In: Solid State Communications, 150 (41-42). pp. 2053-2056.

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Official URL: http://dx.doi.org/10.1016/j.ssc.2010.08.007

Abstract

Room-temperature sensing characteristics for H-2, ethanol, NH3, H2S and water have been investigated with thick-film sensors based on GaN nanoparticles, prepared by a simple chemical route. In general, GaN nanoparticles exhibit satisfactory sensor properties for these gases and vapors even at room temperature. The sensitivity for ethanol is found to be highest, the sensitivity and recovery times being smallest. Gas sensor properties of GaN seem to be related to intrinsic defects, which act as sorption sites for the gas molecules. (c) 2010 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: GaN; Nanoparticles; Sensor
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 29 Nov 2010 11:38
Last Modified: 29 Nov 2010 11:38
URI: http://eprints.iisc.ernet.in/id/eprint/33962

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