J. Phys. Colloques
Volume 46, Numéro C7, Octobre 1985Fifth International Conference on Dynamical Processes in the Excited States of Solids / Dynamique des Etats Excités dans les Solides
|Page(s)||C7-19 - C7-23|
J. Phys. Colloques 46 (1985) C7-19-C7-23
EXCITON DYNAMICS IN ORGANIC MOLECULAR CRYSTALSA. Matsui1, K. Mizuno1 et M. Kobayashi2
1 Department of Physics, Konan University, Okamoto, Kobe 658, Japan
2 Department of Material Physics, Osaka University, Osaka 560, Japan
Dynamical behavior of Frenkel excitons in aromatic hydrocarbon crystals, pyrene, α-perylene, β-perylene, and tetracene are overviewed based on the published references and in terms of the self-trap depth. Then pressure-induced instability in exciton states (the change in the self-trap depth) in α-perylene and anthracene is demonstrated and discussed. Finally a quasi-free exciton state is suggested to be the origin of the luminescence in anthracene at room temperature.