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NO2 and humidity sensing characteristics of few-layer graphenes

Ghosh, Anupama and Late, Dattatray J and Panchakarla, LS and Govindaraj, A and Rao, CNR (2009) NO2 and humidity sensing characteristics of few-layer graphenes. In: Journal of Experimental Nanoscience, 4 (4). pp. 313-322.

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Sensing characteristics of few-layer graphenes for NO2 and humidity have been investigated with graphene samples prepared by the thermal exfoliation of graphitic oxide, conversion of nanodiamond (DG) and arc-discharge of graphite in hydrogen (HG). The sensitivity for NO2 is found to be highest with DG. Nitrogen-doped HG (n-type) shows increased sensitivity for NO2 compared with pure HG. The highest sensitivity for humidity is observed with HG. Sensing characteristics of graphene have been examined for different aliphatic alcohols and the sensitivity is found to vary with the chain length and branching.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Taylor and Francis Group.
Keywords: gas sensor; NO2 sensor; humidity sensor; graphene
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: Id for Latest eprints
Date Deposited: 30 Nov 2009 06:15
Last Modified: 30 Nov 2009 06:15
URI: http://eprints.iisc.ac.in/id/eprint/25016

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