Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 389, Issue -, Pages 35-37Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2014.02.004
Keywords
Disordered insulators; Optical properties; Urbach edge; Density fluctuation; Medium-range structure
Ask authors/readers for more resources
Non-crystalline solids and liquids with optical gaps of 1-9 eV possess Urbach edges with a universal, minimal steepness parameter of similar to 50 meV. We suggest that this value arises from thermo-dynamical density fluctuation inherent to nano-scale, medium-range, glassy structures. Other kinds of disorders appear to reduce the steepness of the optical absorption edges. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
