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Title: Nonradiative and radiative Förster energy transfer between quantum dots

Abstract

We theoretically study nonradiative and radiative energy transfer between two localized quantum emitters, a donor (initially excited) and an acceptor (receiving the excitation). The rates of nonradiative and radiative processes are calculated depending on the spatial and spectral separation between the donor and acceptor states and for different donor and acceptor lifetimes for typical parameters of semiconductor quantum dots. We find that the donor lifetime can be significantly modified only due to the nonradiative Förster energy transfer process at donor–acceptor separations of approximately 10 nm (depending on the acceptor radiative lifetime) and for the energy detuning not larger than 1–2 meV. The efficiency of the nonradiative Förster energy transfer process under these conditions is close to unity and decreases rapidly with an increase in the donor–acceptor distance or energy detuning. At large donor–acceptor separations greater than 40 nm, the radiative corrections to the donor lifetime are comparable with nonradiative ones but are relatively weak.

Authors:
 [1]
  1. Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22617307
Resource Type:
Journal Article
Journal Name:
Journal of Experimental and Theoretical Physics
Additional Journal Information:
Journal Volume: 122; Journal Issue: 3; Other Information: Copyright (c) 2016 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7761
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; APPROXIMATIONS; COMPARATIVE EVALUATIONS; DISTANCE; EFFICIENCY; ENERGY TRANSFER; EXCITATION; LIFETIME; QUANTUM DOTS; RADIATIVE CORRECTIONS; SEMICONDUCTOR MATERIALS; SIMULATION

Citation Formats

Poddubny, A. N., E-mail: poddubny@coherent.ioffe.ru, and Rodina, A. V. Nonradiative and radiative Förster energy transfer between quantum dots. United States: N. p., 2016. Web. doi:10.1134/S1063776116030092.
Poddubny, A. N., E-mail: poddubny@coherent.ioffe.ru, & Rodina, A. V. Nonradiative and radiative Förster energy transfer between quantum dots. United States. doi:10.1134/S1063776116030092.
Poddubny, A. N., E-mail: poddubny@coherent.ioffe.ru, and Rodina, A. V. Tue . "Nonradiative and radiative Förster energy transfer between quantum dots". United States. doi:10.1134/S1063776116030092.
@article{osti_22617307,
title = {Nonradiative and radiative Förster energy transfer between quantum dots},
author = {Poddubny, A. N., E-mail: poddubny@coherent.ioffe.ru and Rodina, A. V.},
abstractNote = {We theoretically study nonradiative and radiative energy transfer between two localized quantum emitters, a donor (initially excited) and an acceptor (receiving the excitation). The rates of nonradiative and radiative processes are calculated depending on the spatial and spectral separation between the donor and acceptor states and for different donor and acceptor lifetimes for typical parameters of semiconductor quantum dots. We find that the donor lifetime can be significantly modified only due to the nonradiative Förster energy transfer process at donor–acceptor separations of approximately 10 nm (depending on the acceptor radiative lifetime) and for the energy detuning not larger than 1–2 meV. The efficiency of the nonradiative Förster energy transfer process under these conditions is close to unity and decreases rapidly with an increase in the donor–acceptor distance or energy detuning. At large donor–acceptor separations greater than 40 nm, the radiative corrections to the donor lifetime are comparable with nonradiative ones but are relatively weak.},
doi = {10.1134/S1063776116030092},
journal = {Journal of Experimental and Theoretical Physics},
issn = {1063-7761},
number = 3,
volume = 122,
place = {United States},
year = {2016},
month = {3}
}