Emission spectra and phonon relaxation
Author:
- 15 May 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 15 (10) , 4587-4595
Abstract
Absorption and emission spectra are calculated for a model which has phonon coupling to a localized electronic state. The lifetimes of the electronic state, and of the phonons, are both included. Thus the emission spectrum is influenced by the amount of relaxation in the phonon system. If the emission is slow, the phonons relax around the excitation, and the emission has a Franck-Condon shift. If the emission is fast, the phonons do not have time to relax, and the shift is considerably reduced.Keywords
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