FRET efficiency in surface complexes of CdSe/ZnS quantum dots with azo-dyes

Kirill I. Annas; Yuliya A. Gromova; Anna O. Orlova; Vladimir G. Maslov; Anatoly V. Fedorov; Alexander V. Baranov

doi:10.1117/12.2227883

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21 April 2016 FRET efficiency in surface complexes of CdSe/ZnS quantum dots with azo-dyes

Kirill I. Annas, Yuliya A. Gromova, Anna O. Orlova, Vladimir G. Maslov, Anatoly V. Fedorov, Alexander V. Baranov

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Proceedings Volume 9884, Nanophotonics VI; 98843G (2016) https://doi.org/10.1117/12.2227883
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Photoinduced dissociation of surface complexes of CdSe/ZnS quantum dots with azo-dye 1-(2- pyridylazo)-2-naphthol (PAN) was investigated. It was shown that the Förster resonance energy transfer contributes in the complexes photodissociation rate, which depends on resonance condition between electronic levels of donor (quantum dots) and acceptor (azo-dye) and donor photoluminescent quantum yield. It has allowed to estimate energy transfer efficiency in the complexes and disclosed a new nonradiative channel that has minor contribution in the deactivation of excited states of quantum dots in the complexes.

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Kirill I. Annas, Yuliya A. Gromova, Anna O. Orlova, Vladimir G. Maslov, Anatoly V. Fedorov, and Alexander V. Baranov "FRET efficiency in surface complexes of CdSe/ZnS quantum dots with azo-dyes", Proc. SPIE 9884, Nanophotonics VI, 98843G (21 April 2016); https://doi.org/10.1117/12.2227883

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