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The quenching of emission in proximity to metallic surfaces via non-radiative energy transfer is studied for sensing applications. It can also be used for the measurement of distances on the nanoscale. We report on energy transfer from a plane of CdTe quantum dots (QDs) plane to a plane of gold (Au) nanoparticles. Both photoluminescence (PL) and luminescence lifetime measurements demonstrate that...
Förster resonant energy transfer (FRET) can be applied to create energy flow on the nano-scale for lightharvesting, colour conversion or sensing applications. The performance of such devices depends on the efficiency of the energy transfer process between the donors and acceptors. In order to achieve high FRET efficiencies, the FRET rate has to dominate over the other donor decay rates. The FRET rate...
The effects of surface plasmons (SPs) on Förster resonant energy transfer (FRET) in colloidal quantum dot (QD) structures have been investigated. CdTe QDs of two different sizes acted as donors and acceptors in a mixed donor-acceptor monolayer on top of a gold nanoparticle layer and an acceptor-gold-donor sandwich structure. The structures were prepared by a layer-by-layer technique and characterized...
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