Grein, C.H. and John, S. (1989) Temperature Dependence of the Urbach Optical Absorption Edge: A Theory of Multiple Phonon Absorption and Emission Sidebands. Physical Review B, 39, 1140-1151.
https://doi.org/10.1103/PhysRevB.39.1140.

has been cited by the following article:

• TITLE: Temperature Dependence of Urbach Energy in Non-Crystalline Semiconductors

  AUTHORS: Rustam Ikramov, Mashxura Nuriddinova, Khurshidbek Muminov, Ravshan Zhalalov

  KEYWORDS: Non-Crystalline Semiconductors, Urbach Rules, Urbach Energy, Optical Transitions

  JOURNAL NAME: Optics and Photonics Journal, Vol.10 No.9, September 25, 2020

  ABSTRACT: Until now, no analytical relationships have been derived for the temperature dependence of the Urbach energy in non-crystalline semiconductors. Consequently, the problem associated with the theoretical study of the temperature dependence of this energy has not been solved. This paper presents the results of theoretical calculations and attempts to establish the temperature dependence of the Urbach energy in non-crystalline semiconductors. A linear increase in the Urbach energy with increasing temperature is shown.