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Band‐Gap Engineering of Donor–Acceptor‐Substituted π‐Conjugated Polymers
Author(s) -
van Mullekom H. A. M.,
Vekemans J. A. J. M.,
Meijer E. W.
Publication year - 1998
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/(sici)1521-3765(19980710)4:7<1235::aid-chem1235>3.0.co;2-4
Subject(s) - stille reaction , conjugated system , thiophene , quinoxaline , acceptor , band gap , polymer , materials science , pyrrole , electron acceptor , photochemistry , chemistry , optoelectronics , organic chemistry , physics , condensed matter physics , composite material
Some practical guidelines for the design of novel low‐band‐gap systems. Various donor–acceptor π‐conjugated oligomers with different chain lengths containing electron‐donating thiophene or pyrrole rings and electron‐withdrawing 2,1,3‐benzothiadiazole (like the one shown here) or quinoxaline rings have been synthesized by Stille cross‐coupling. The UV/Vis absorption behavior of these systems is used to give guidelines for donor–acceptor based low‐band‐gap or even intrinsically conducting polymers.