9 February 1995 Optical properties of galium iodide
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Proceedings Volume 2362, International Conference on Excitonic Processes in Condensed Matter; (1995); doi: 10.1117/12.200951
Event: Excitonic Processes in Condensed Matter: International Conference, 1994, Darwin, Australia
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.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Nobuhito Ohno, Minoru Itoh, "Optical properties of galium iodide", Proc. SPIE 2362, International Conference on Excitonic Processes in Condensed Matter, (9 February 1995); doi: 10.1117/12.200951; https://doi.org/10.1117/12.200951
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