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Proceedings Paper

Optical properties of galium iodide
Author(s): Nobuhito Ohno; Minoru Itoh
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Paper Abstract

Optical properties of gallium iodide GaI3 have been studied for the first time in the energy range of 2 - 8 eV. The fundamental absorption edge is located at 3.1 eV at 15 K, and it shows anomalously large red shift with increasing temperature. It is found that a logarithmic plot of the absorption coefficient gives a straight line for all temperatures investigated, indicating that the absorption edge of GaI3 is well described by the Urbach rule. The exciton-phonon interaction and the exciton relaxation process are discussed on the basis of these results as well as the luminescence result.

Paper Details

Date Published: 9 February 1995
PDF: 7 pages
Proc. SPIE 2362, International Conference on Excitonic Processes in Condensed Matter, (9 February 1995); doi: 10.1117/12.200951
Show Author Affiliations
Nobuhito Ohno, Osaka Univ. (Japan)
Minoru Itoh, Shinshu Univ. (Japan)

Published in SPIE Proceedings Vol. 2362:
International Conference on Excitonic Processes in Condensed Matter
Jai Singh, Editor(s)

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