A comparative Raman study of the interaction of electron donor and acceptor molecules with graphene prepared by different methods

Subrahmanyam, KS and Voggu, Rakesh and Govindara, A and Rao, CNR (2009) A comparative Raman study of the interaction of electron donor and acceptor molecules with graphene prepared by different methods. In: Chemical Physics Letters, 472 (1-3). pp. 96-98.

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Abstract

Interaction of tetrathiafulvalene (TTF) and tetracyanoethylene (TCNE) with few-layer graphene samples prepared by the exfoliation of graphite oxide (EG), conversion of nanodiamond (DG) and arc-evaporation of graphite in hydrogen (HG) has been investigated by Raman spectroscopy to understand the role of the graphene surface. The position and full-width at half maximum of the Raman G-band are affected on interaction with TTF and TCNE and the effect is highest with EG and least with HG. The effect of TTF and TCNE on the 2D-band is also maximum with EG. The magnitude of interaction between the donor/acceptor molecules varies in the same order as the surface areas of the graphenes. (C) 2009 Published by Elsevier B. V.

Item Type:	Journal Article
Publication:	Chemical Physics Letters
Publisher:	Elsevier Science
Additional Information:	The copyright of this article belongs to Elsevier Science.
Keywords:	Isoperimetric problem; Binary trees; t-ary trees; Pathwidth
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	28 May 2009 10:29
Last Modified:	19 Sep 2010 05:31
URI:	http://eprints.iisc.ac.in/id/eprint/20008

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