Bhowmick, Somnath and Saini, Sangeeta and Shenoy, Vijay B and Bagchi, Biman (2006) Resonance energy transfer from a fluorescent dye to a metal nanoparticle. In: Journal of Chemical Physics, 125 (18). 181102-1-181102-6.
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Abstract
A quantum mechanical theory of the rate of excitation energy transfer from a fluorescent dye molecule to the surface plasmonic modes of a spherical metal nanoparticle is presented. The theory predicts the distance dependence of the transfer rate to vary as $1/d ^ \sigma$, with \sigma =3–4 at intermediate distances, in partial agreement with the recent experimental results. Förster's $1/d^6$ dependence is recovered at large separations. The predicted rate exhibits nontrivial nanoparticle size dependence, ultimately going over to an asymptotic, $a^3$ size dependence. Unlike in conventional fluorescence resonance energy transfer, the orientational factor is found to vary between 1 and 4.
Item Type: | Journal Article |
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Publication: | Journal of Chemical Physics |
Publisher: | American Institute of Physics |
Additional Information: | Copyright of this article belongs to American Institute of Physics. |
Department/Centre: | Division of Chemical Sciences > Materials Research Centre Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
Date Deposited: | 12 May 2008 |
Last Modified: | 19 Sep 2010 04:44 |
URI: | http://eprints.iisc.ac.in/id/eprint/13967 |
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