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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...
Products of reaction between Cd perchlorate and N,N-dimethylselenourea in the presence of glycine carried out upon microwave treatment were identified as bundles of micrometer-long wires of Cd(OH) x decorated with CdSe nanoparticles. The morphology of the samples, in particular the degree of CdSe decoration and the size of CdSe nanoparticles has been governed through the adjustment of the...
CdTe nanocrystals capped by short-chain thiol molecules can easily be prepared in aqueous solution, possess a single narrow emission band and can potentially be used as luminescence sensors and ions probes. We report the effect of pH and various ions, including physiology important cations such as calcium(II), manganese(II) and iron(III), on the luminescence intensity of CdTe nanocrystals capped by...
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