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Structural and electrical properties of amorphous carbon–sulfur composite films

Kumari, Latha and Subramanyam, SV (2004) Structural and electrical properties of amorphous carbon–sulfur composite films. In: Bulletin of Materials Science, 27 (3). 289–294.

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Abstract

In this paper, we discuss the synthesis of carbon–sulfur composite (a-C:S) films by vapour phase pyrolysis of maleic anhydride and sulfur. Structural changes in the system are analysed by scanning electron microscopy and powder X-ray diffraction. Microhardness test depicts an increase in the value of hardness with an increase in sulfur concentration. Electrical conductivity of composite samples varies with sulfur concentration.Magnetoresistance (MR) measurements show a drastic increase in the value of MR for the samples prepared at < 900°C. Thermal stability of these samples is analysed by thermogravimetric analysis, which depends on the host structure and the amount of intercalated species.

Item Type: Journal Article
Additional Information: This article ciopyright belongs to Indian Academy of Sciences
Keywords: Amorphous carbon films; pyrolysis; scanning electron microscopy; electrical properties; thermal analysis.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 26 Jun 2007
Last Modified: 27 Aug 2008 12:52
URI: http://eprints.iisc.ernet.in/id/eprint/11229

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