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Counting Chromophores in Conjugated Polymers
Author(s) -
Schindler Florian,
Jacob Josemon,
Grimsdale Andrew C.,
Scherf Ullrich,
Müllen Klaus,
Lupton John M.,
Feldmann Jochen
Publication year - 2005
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.200461784
Subject(s) - chromophore , conjugated system , polymer , molecule , materials science , spectroscopy , chemistry , photochemistry , polymer chemistry , organic chemistry , physics , quantum mechanics
The emitting species in conjugated polymers have been studied by single‐molecule spectroscopy (see picture). The number of emissive centers (chromophores) varies as a function of molecular weight and chain length. A large ladder‐type undecaphenylene was used as a molecular ruler to estimate the size of chromophores in the polymer and to enable a direct assessment of the polymeric conjugation length.