The anisotropical optical spectra of highly stretch-oriented poly(p-phenylene-vinylene)

Authors
Comoretto, D Marabelli, F Tognini, P Stella, A Dellepiane, G
Citation
D. Comoretto et al., The anisotropical optical spectra of highly stretch-oriented poly(p-phenylene-vinylene), SYNTH METAL, 119(1-3), 2001, pp. 643-644
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
119
Issue
1-3
Year of publication
2001
Pages
643 - 644
Database
ISI
SICI code
0379-6779(20010315)119:1-3<643:TAOSOH>2.0.ZU;2-B
Abstract
We report the anisotropical optical response of highly oriented poly(p-phen ylene-vinylene) (PPV). The polarization of the main transitions detected in the electronic spectra is discussed with particular emphasis for the band at about 4.7 eV. Moreover, the comparison of the reflectance, transmittance and imaginary part of the dielectric constant spectra allows to locate at about 2.2 eV the onset of the absorption for very long conjugated chains.