Polarization dependence of the photoconductivity of stretch-oriented poly(p-phenylenevinylene) films

Authors
Lee, CH Park, JY Park, YW Moses, D Heeger, AJ Noguchi, T Ohnishi, T
Citation
Ch. Lee et al., Polarization dependence of the photoconductivity of stretch-oriented poly(p-phenylenevinylene) films, SYNTH METAL, 101(1-3), 1999, pp. 444-445
Citations number
5
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
444 - 445
Database
ISI
SICI code
0379-6779(199905)101:1-3<444:PDOTPO>2.0.ZU;2-W
Abstract
The polarization dependence of the photoconductivity (PC) is studied in str etch-oriented poly(p-phenylenevinylene) films. Differences in the recombina tion dynamics and spectral responses of the photocurrent are observed for d ifferent polarization directions. The steady-state PC spectra show well-res olved vibronic structures with a PC onset at about 2.2 eV in the oriented P PV. The transient subnanosecond PC shows larger photocurrent and lifetime f or carriers generated by light polarized perpendicular to the orientation a xis.