PHOTOINDUCED ABSORPTION OF POLYALKYLTHIENYLENEVINYLENES

被引:8
作者
BOTTA, C
BRADLEY, DDC
FRIEND, RH
MUSCO, A
机构
[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND
[2] UNIV URBINO,IST SCI CHIM,I-61029 URBINO,ITALY
关键词
D O I
10.1016/0379-6779(93)90934-O
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present a photoinduced absorption study of alkyl substituted poly(2,5-thienylenevinylene)s. Three photoinduced states are detected in both the solid state and in solution. The two low-energy bands are assigned to bipolarons, while a third band peaked near the band edge has a different origin. In solution photoexcitated states are very long-lived and we propose that photoexcitations recombine via a solvent-assisted photo-doping mechanism.
引用
收藏
页码:206 / 211
页数:6
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