The Urbach rule in the configuration-coordinate model of amorphous semiconductors
- 1 December 1979
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 40 (6) , 475-481
- https://doi.org/10.1080/01418637908226771
Abstract
The Urbach rule in the configuration-coordinate model of amorphous semiconductors is described. Different functions of the excited-state energy on the configurational coordinate are considered and a comparison of the optical absorption in amorphous solids with electron excitation is given. An explanation of the temperature dependence of the Urbach edge for optical absorption is proposed.Keywords
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