Ultrafast photoexcitations in para-hexaphenyl

Citation
C. Zenz et al., Ultrafast photoexcitations in para-hexaphenyl, SYNTH METAL, 101(1-3), 1999, pp. 660-661
Citations number
16
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
660 - 661
Database
ISI
SICI code
0379-6779(199905)101:1-3<660:UPIP>2.0.ZU;2-S
Abstract
The photoexcitations in the visible and near infrared spectral region of te xtured polycrystalline para-hexaphenyl (PHP) films are investigated by ultr afast pump-probe spectroscopy. We observe a strong stimulated emission band at 2.7 eV and photoinduced absorption bands. We assign this features to si nglet exciton, triplet exciton, and polaron absorption, using field assiste d pump-probe measurements.