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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