Surface plasmon enhanced energy transfer between donor and acceptor CdTe nanocrystal quantum dot monolayers.

Lunz, Manuela; Gerard, Valerie A; Gun'ko, Yurii K; Lesnyak, Vladimir; Gaponik, Nikolai; Susha, Andrei S; Rogach, Andrey L; Bradley, A Louise · Nano Lett · 2011

basic_science · Level V

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Abstract

Surface plasmon enhanced Förster resonant energy transfer (FRET) between CdTe nanocrystal quantum dots (QDs) has been observed in a multilayer acceptor QD-gold nanoparticle-donor QD sandwich structure. Compared to a donor-acceptor QD bilayer structure without gold nanoparticles, the FRET rate is enhanced by a factor of 80 and the Förster radius increases by 103%. Furthermore, a strong impact of the donor QD properties on the surface plasmon mediated FRET is reported.