Crystallization and excitonic luminescence of coronene crystals
- 14 August 1993
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 26 (8B) , B242-B244
- https://doi.org/10.1088/0022-3727/26/8b/042
Abstract
The authors have obtained single-crystal flakes with dimensions approximately 5 mm * 1.0 mm. The major impurity in commercial coronene has been removed by recrystallization from benzene solution. Other unknown impurities were removed by zone refining combined with a sublimation technique. The molecules in the coronene crystal are stacked closely and parallel to each other. A feature that one expects from the stacked molecular arrangement is a strong exciton-phonon interaction. Luminescence spectra were consistent with this suggestion, indicating that free excitons relax quickly to a self-trapped state which is shallow.Keywords
This publication has 6 references indexed in Scilit:
- Free-Exciton Luminescence and Weak-Exciton Scattering in Coronene CrystalsJournal of the Physics Society Japan, 1992
- Luminescence and Exciton Lattice Interaction in α-Perylene CrystalsJournal of the Physics Society Japan, 1982
- Luminescence of Free and Self Trapped Excitons in PyreneJournal of the Physics Society Japan, 1980
- Synthesis and Purification of CoroneneNippon kagaku zassi, 1969
- 72. The crystal structure of pyrene. A quantitative X-ray investigationJournal of the Chemical Society, 1947
- 164. The crystal structure of coronene: a quantitative X-ray investigationJournal of the Chemical Society, 1945