期刊
JOURNAL OF CHEMICAL SCIENCES
卷 121, 期 5, 页码 777-787出版社
INDIAN ACAD SCIENCES
DOI: 10.1007/s12039-009-0092-x
关键词
FRET; graphene; nanotube; tight-binding model
资金
- Council of Scientific and Industrial Research (CSIR), India
- Bristol-Myers-Squibb
Deviations from the usual R (-6) dependence of the rate of fluorescence resonance energy transfer (FRET) on the distance between the donor and the acceptor have been a common scenario in the recent times. In this paper, we present a critical analysis of the distance dependence of FRET, and try to illustrate the non-R (-6) type behaviour of the rate for the case of transfer from a localized electronic excitation on the donor, a dye molecule to three different energy acceptors with delocalized electronic excitations namely, graphene, a two-dimensional semiconducting sheet and the case of such a semiconducting sheet rolled to obtain a nanotube. We use simple analytic models to understand the distance dependence in each case.
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