Higher-Excited-State Photophysical Pathways in Multichromophoric Systems Revealed by Single-Molecule Fluorescence Spectroscopy

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 gen...

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Bibliographic Details
Published in:Chemphyschem 2004-11, Vol.5 (11), p.1786-1790
Main Authors: Tinnefeld, Philip, Hofkens, Johan, Herten, Dirk-Peter, Masuo, Sadahiro, Vosch, Tom, Cotlet, Mircea, Habuchi, Satoshi, Müllen, Klaus, De Schryver, Frans C., Sauer, Markus
Format: Article
Language:English
Subjects:
Applied sciences
chromophores
Electrical, magnetic and optical properties
Exact sciences and technology
fluorescence spectroscopy
FRET (fluorescence resonance energy transfer)
Organic polymers
photophysics
Physicochemistry of polymers
Properties and characterization
single-molecule studies
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Summary: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.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.200400325