Qaiser, Darakhshan and Khan, Mohd. Shahid and Singh, R. D. and Khan, Zahid H. and Chawla, Santa (2010) Förster's resonance energy transfer between Fullerene C60 and Coumarin C440. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 77 (5). pp. 1065-1068. ISSN 1386-1425

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Abstract

The interaction between Coumarin C440 with Fullerene C60 has been studied by fluorescence and time resolved spectroscopic techniques. The Coumarin C440–Fullerene C60 pair shows Forster's resonance energy transfer (FRET) from Coumarin C440 (donor) to Fullerenes C60 (acceptor). The FRET efficiency of this pair increases with the increase of the acceptor concentration. The critical energy transfer distance (R0) at which transfer efficiency is 50% is found to be 34 Ǻ. Stern–Volmer plot indicates static as well as dynamic quenching. However, the FRET studies show highest efficiency at the critical stage of dimer formation.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier B.V.
Uncontrolled Keywords:	Fullerene C60; Coumarin C440; Fluorescence quenching; TRS; FRET efficiency
Subjects:	Spectroscopy
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	20 Apr 2012 10:58
Last Modified:	20 Apr 2012 10:58
URI:	http://npl.csircentral.net/id/eprint/166

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