Characterization and thermal stability of iodinated amorphous conducting carbon films

Kumari, Latha and Subramanyam, SV and Gayen, Arup and Jayaram, V (2005) Characterization and thermal stability of iodinated amorphous conducting carbon films. In: Thin Solid Films, 471 (1-2). pp. 252-256.

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Abstract

In this work, we discuss the structural and transport properties of iodine intercalated amorphous conducting carbon (a-C: I) films prepared by vapor phase pyrolysis of maleic anhydride and iodine. X-ray photoelectron spectroscopy studies reveal the presence of iodine in the a-C: I samples. Microhardness measurements of the films show a decrease in the value of the hardness with an increase in iodine concentration. Iodine incorporation accounts for a change in electrical conductivity of the a-C samples. Magnetoresistance measurements performed on a-C: I samples show a decrease in the value of magnetoresistance. The thermal stability of a-C: I samples has been studied by thermogravimetric analysis, which is found to depend on the host structure and amount of intercalated iodine.

Item Type:	Journal Article
Additional Information:	Copyright for this article belongs to Elsevier Science.
Keywords:	Carbon;Electrical properties and measurements;Thermal analysis;X-ray photoelectron spectroscopy
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Physical & Mathematical Sciences > Physics
Date Deposited:	15 Dec 2004
Last Modified:	19 Sep 2010 04:17
URI:	http://eprints.iisc.ernet.in/id/eprint/2406

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