Structural and electrical transport of carbon nanofibers derived from dihydro-2,5-furandione

Prasad, V (2008) Structural and electrical transport of carbon nanofibers derived from dihydro-2,5-furandione. In: Materials Science and Engineering B, 147 (1). pp. 63-68.

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Abstract

Carbon nanofibers of 50–500 nm diameter and several micrometer length were synthesized by high-temperature pyrolysis of dihydro-2,5-furandione (C4H4O3) in the temperature range of 600–980 °C. The formation of both graphitic and non-graphitic structured carbon fibers was observed in high-resolution transmission electron microscope. The Raman spectra of the samples showed the presence of both the D and G bands of varying intensity and sharpness. The low-temperature electrical transport studies on the samples have shown interesting metal–insulator transitions. The films showed variable range hopping conduction in the insulating regime and power law behavior in the critical regime at low temperatures.

Item Type:	Journal Article
Publication:	Materials Science and Engineering B
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Carbon;Fibers;Graphite;Thin films;Electron microscopy;Metal–insulator transitions.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	04 Jun 2010 08:44
Last Modified:	19 Sep 2010 05:58
URI:	http://eprints.iisc.ac.in/id/eprint/26718

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