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Preparation, characterization and electrical conductivity studies of MWCNT/ZnO nanoparticles hybrid

Sameera, I and Bhatia, Ravi and Prasad, V (2010) Preparation, characterization and electrical conductivity studies of MWCNT/ZnO nanoparticles hybrid. In: Physica B: Condensed Matter, 405 (7). pp. 1709-1714.

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Official URL: http://dx.doi.org/10.1016/j.physb.2009.12.074

Abstract

Multiwall carbon nanotubes (MWCNTs) were decorated with crystalline zinc oxide nanoparticles (ZnO NPs) by wet chemical route to form MWCNT/ZnO NPs hybrid. The hybrid sample was characterized by scanning and transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. Electrical conductivity of the hybrid can be tuned by varying the ZnO NPs content in the hybrid. In order to investigate the effect of nanoparticles loading on the conduction of MWCNTs network, electrical conductivity studies have been carried out in the wide temperature range 1.5-300K. The electrical conductivity of the hybrid below 100K is explained with the combination of variable range hopping conduction and thermal fluctuation induced tunnelling model. (C) 2009 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this artcle belongs to Elsevier Science.
Keywords: Multiwall carbon nanotubes; Zinc oxide nanoparticles; Electron microscopy; X-ray electron photoelectron spectroscopy; Electrical conduction
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 16 Jun 2010 09:12
Last Modified: 19 Sep 2010 05:59
URI: http://eprints.iisc.ernet.in/id/eprint/26951

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