PHOTOINDUCED ABSORPTION OF POLYALKYLTHIENYLENEVINYLENES

Authors
BOTTA C BRADLEY DDC FRIEND RH MUSCO A
Citation
C. Botta et al., PHOTOINDUCED ABSORPTION OF POLYALKYLTHIENYLENEVINYLENES, Synthetic metals, 55(1), 1993, pp. 206-211
Citations number
17
Categorie Soggetti
Physics, Condensed Matter","Metallurgy & Mining
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
55
Issue
1
Year of publication
1993
Pages
206 - 211
Database
ISI
SICI code
0379-6779(1993)55:1<206:PAOP>2.0.ZU;2-Y
Abstract
We present a photoinduced absorption study of alkyl substituted poly(2 ,5-thienylenevinylene)s. Three photoinduced states are detected in bot h the solid state and in solution. The two low-energy bands are assign ed to bipolarons, while a third band peaked near the band edge has a d ifferent origin. In solution photoexcitated states are very long-lived and we propose that photoexcitations recombine via a solvent-assisted photo-doping mechanism.