Quenching of fluorescence of aromatic molecules by graphene due to electron transfer

Matte, H S S Ramakrishna; Subrahmanyam, K S; Rao, K Venkata; George, Subi J; Rao, C N R

dc.contributor.author	Matte, H S S Ramakrishna
dc.contributor.author	Subrahmanyam, K S
dc.contributor.author	Rao, K Venkata
dc.contributor.author	George, Subi J
dc.contributor.author	Rao, C N R
dc.date.accessioned	2012-03-21T08:34:46Z
dc.date.available	2012-03-21T08:34:46Z
dc.date.issued	2011-04-20
dc.identifier	0009-2614	en_US
dc.identifier.citation	Chemical Physics Letters 506(4-6), 260-264 (2011)	en_US
dc.identifier.uri	https://libjncir.jncasr.ac.in/xmlui/10572/705
dc.description	Restricted Access	en_US
dc.description.abstract	Investigations on the fluorescence quenching of graphene have been carried out with two organic donor molecules, pyrene butanaoic acid succinimidyl ester (PyBS, I) and oligo(p-phenylenevinylene) methyl ester (OPV-ester, II). Absorption and photoluminescence spectra of I and II recorded in mixture with increasing the concentrations of graphene showed no change in the former, but remarkable quenching of fluorescence. The property of graphene to quench fluorescence of these aromatic molecules is shown to be associated with photo-induced electron transfer, on the basis of fluorescence decay and time-resolved transient absorption spectroscopic measurements. (C) 2011 Elsevier B. V. All rights reserved.	en_US
dc.description.uri	http://dx.doi.org/10.1016/j.cplett.2011.03.031	en_US
dc.language.iso	en	en_US
dc.publisher	Elsevier Science B V	en_US
dc.rights	© 2011 Elsevier B V	en_US
dc.subject	Carbon Nanotubes	en_US
dc.subject	Noncovalent Functionalization	en_US
dc.subject	Charge-Transfer	en_US
dc.subject	Donor	en_US
dc.subject	Solubilization	en_US
dc.subject	Nanoparticles	en_US
dc.subject	Porphyrin	en_US
dc.subject	Polymers	en_US
dc.subject	Oxide	en_US
dc.title	Quenching of fluorescence of aromatic molecules by graphene due to electron transfer	en_US
dc.type	Article	en_US