Polarized photoluminescence and spectral narrowing in an oriented polyfluorene thin film

Authors
Bauer, C Urbasch, G Giessen, H Meisel, A Nothofer, HG Neher, D Scherf, U Mahrt, RF
Citation
C. Bauer et al., Polarized photoluminescence and spectral narrowing in an oriented polyfluorene thin film, CHEMPHYSCHE, 1(3), 2000, pp. 142
Citations number
30
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMPHYSCHEM
ISSN journal
14394235 → ACNP
Volume
1
Issue
3
Year of publication
2000
Database
ISI
SICI code
1439-4235(20001103)1:3<142:PPASNI>2.0.ZU;2-7
Abstract
The oriented polyfluorene 1 is a promising candidate for a blue polarized e mitter in organic optoelectronic devices. By examination of the anisotropic luminescence of thin films of 1, polarization-dependent spectral narrowing was found at high excitation densities, which is of particular interest in reducing the threshold for optically pumped polymer lasers. Femtosecond pu mp-probe experiments show optical gain at this spectral position.