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Facile Doping of Anionic Narrow‐Band‐Gap Conjugated Polyelectrolytes During Dialysis
Author(s) -
Mai ChengKang,
Zhou Huiqiong,
Zhang Yuan,
Henson Zachary B.,
Nguyen ThucQuyen,
Heeger Alan J.,
Bazan Guillermo C.
Publication year - 2013
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.201307667
Subject(s) - polyelectrolyte , doping , protonation , conjugated system , polaron , polymer , band gap , chemical physics , chemistry , materials science , polymer chemistry , chemical engineering , electron , optoelectronics , organic chemistry , ion , physics , quantum mechanics , engineering
PCPDTBTSO 3 K , an anionic, narrow‐band‐gap conjugated polyelectrolyte, was found to be doped after dialysis. The proposed doping mechanism involves protonation of the polymer backbone, followed by electron transfer from a neutral chain, to generate radical cations, which are stabilized by the pendant sulfonate anions. Formation of polarons is supported by spectroscopy and electrical‐conductivity measurements.