In-situ Resonant Raman Spectroelectrochemical study of p-doped poly(p-phenylene vinylene): influence of the conversion

Citation
M. Baitoul et al., In-situ Resonant Raman Spectroelectrochemical study of p-doped poly(p-phenylene vinylene): influence of the conversion, SYNTH METAL, 101(1-3), 1999, pp. 173-174
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
101
Issue
1-3
Year of publication
1999
Pages
173 - 174
Database
ISI
SICI code
0379-6779(199905)101:1-3<173:IRRSSO>2.0.ZU;2-Q
Abstract
We purpose to study the electronic structure modifications induced by p typ e doping of poly(p-phenylene vinylene) (PPV). PPV is obtained by thermal an d photochemical conversion of tetrahydrothiophenium precursor. These both p olymers have some differences in their conjugation length distribution. The resonant Raman spectra analysis coupled to a dynamic model permits us to d escribe vibrational modes corresponding to the different localized charged excitations produced along the chain of these polymers after doping. The ch aracteristics of a quinoid structure are put in evidence. This one is indep endent of the conversion conditions of PPV and of the counter-ion nature.