Absorption-spectral-shape analysis of the band-edge exciton in aBiI3crystal based on the exciton-phonon interaction
- 15 June 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 43 (17), 14329-14332
- https://doi.org/10.1103/physrevb.43.14329
Abstract
We have observed optical absorption spectra of the band-edge direct-exciton absorption line at temperatures from 4.2 to 293 K in thin-film single crystals grown by the hot-wall crystal growth technique. The absorption spectral shape has been calculated by use of the weak-coupling exciton-phonon interaction theory. At low temperatures, the calculated results are in good agreement with the experimental measurements in the spectral regions of both the indirect-exciton edge and the direct-exciton peak.
Keywords
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