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Synthesis, characterization and spectroscopy of composites of graphene with CdSe and CdS nanoparticles

Moses, Kota and Panchakarla, LS and Matte, Ramakrishna HSS and Govindarao, Bolla and Rao, CNR (2011) Synthesis, characterization and spectroscopy of composites of graphene with CdSe and CdS nanoparticles. In: Indian Journal of Chemistry - Section A: Inorganic, Physical, Theoretical and Analytical Chemistry, 50 (9-10, ). pp. 1239-1247.

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Official URL: http://nopr.niscair.res.in/handle/123456789/12785

Abstract

Nanocomposites of few-layer graphene with nanoparticles of CdSe and CdS have been synthesized by two different methods, one involving ultrasonication of a mixture of graphene and the chalcogenide nanoparticles, and another involving assembly at the organic-aqueous interface. The nanocomposites have been examined by electron microscopy, electronic absorption and photoluminescence spectroscopies as well as Raman spectroscopy. Electron microscopy reveals that the nanoparticles are dispersed on the graphene surface. Raman spectra show the presence of definitive electronic interaction between the nanoparticles and graphene depending on the capping agent. Photoluminescence spectra are markedly influenced by the interaction of the nanoparticles with the graphene surface, depending on the capping agent.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to National Institute of Science Communication and Information Resources.
Keywords: Nanocomposites;Graphene;Chalcogenide nanoparticles;Liquid-liquid interface;Raman spectroscopy
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Depositing User: Id for Latest eprints
Date Deposited: 20 Dec 2011 11:53
Last Modified: 20 Dec 2011 11:53
URI: http://eprints.iisc.ac.in/id/eprint/42784

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