Highly efficient Förster resonance energy transfer between CdTe nanocrystals and Rhodamine B in mixed solid films

We report evidence for highly efficient Förster resonance energy transfer between CdTe nanocrystals (donors) and Rhodamine B (acceptors) in mixed solid films. Enhancement of the acceptor photoluminescence intensity and a decrease of the donor decay time are observed in the films containing nanocryst...

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Bibliographic Details
Published inChemical physics letters Vol. 388; no. 1; pp. 100 - 104
Main Authors Alphandéry, E., Walsh, L.M., Rakovich, Y., Bradley, A.L., Donegan, J.F., Gaponik, N.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 11.04.2004
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Summary:We report evidence for highly efficient Förster resonance energy transfer between CdTe nanocrystals (donors) and Rhodamine B (acceptors) in mixed solid films. Enhancement of the acceptor photoluminescence intensity and a decrease of the donor decay time are observed in the films containing nanocrystals mixed with Rhodamine B. For a wide range of films with a ratio between the amount of acceptors and the amount of donors of 0.2–5, an efficiency of energy transfer of more than 20% is estimated from time resolved measurements.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2004.02.080