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Probing the Influence of O 2 on Photoinduced Reversible Electron Transfer in Perylenediimide–Triphenylamine‐Based Dendrimers by Single‐Molecule Spectroscopy
Author(s) -
Cotlet Mircea,
Masuo Sadahiro,
Lor Marc,
Fron Eduard,
Van der Auweraer Mark,
Müllen Klaus,
Hofkens Johan,
De Schryver Frans
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200460560
Subject(s) - triphenylamine , dendrimer , excited state , spectroscopy , molecule , photochemistry , chemistry , acceptor , electron transfer , materials science , polymer chemistry , organic chemistry , physics , atomic physics , quantum mechanics , condensed matter physics
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).