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The dynamics of reversible photoinduced electron transfer in individual perylenediimide–triphenylamine-based donor–acceptor dendrimers immobilized in polystyrene were investigated by single-molecule spectroscopy. By changing the local concentration of oxygen, it was possible to influence the transition of the charge-separation state (CSS) either to the locally excited state (LES) or to the ground state (GS, see graphic).
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Cotlet et al. (2004) studied this question.
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