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IJC-A Vol.50A(09-10) [September-October 2011] >


Title: Synthesis, characterization and spectroscopy of composites of graphene with CdSe and CdS nanoparticles
Authors: Moses, Kota
Panchakarla, L S
Ramakrishna Matte, H S S
Govindarao, Bolla
Rao, C N R
Keywords: Nanocomposites
Graphene
Chalcogenide nanoparticles
Liquid-liquid interface
Raman spectroscopy
Issue Date: Sep-2011
Publisher: NISCAIR-CSIR, India
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.
Page(s): 1239-1247
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.50A(09-10) [September-October 2011]

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