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Higher‐Excited‐State Photophysical Pathways in Multichromophoric Systems Revealed by Single‐Molecule Fluorescence Spectroscopy
Author(s) -
Tinnefeld Philip,
Hofkens Johan,
Herten DirkPeter,
Masuo Sadahiro,
Vosch Tom,
Cotlet Mircea,
Habuchi Satoshi,
Müllen Klaus,
De Schryver Frans C.,
Sauer Markus
Publication year - 2004
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200400325
Subject(s) - intersystem crossing , photobleaching , fluorescence , excited state , photochemistry , dendrimer , molecule , spectroscopy , chemistry , fluorescence spectroscopy , single molecule experiment , atomic physics , physics , optics , singlet state , organic chemistry , quantum mechanics
Singlets annihilated: A single‐molecule fluorescence spectroscopic study of multichromophoric peryleneimide‐substituted polyphenylene‐core dendrimers under various conditions indicates that increased intersystem crossing (see graphic) as a consequence of an annihilation process might represent a general motif for increased photobleaching of the first intensity levels in multichromophoric systems.