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- Title
Absorption edge characteristics of β-Ga2O3 single crystal.
- Authors
Gao, Shang
- Abstract
The intrinsic absorption edge of a β - Ga 2 O 3 single crystal is examined by spectroscopic ellipsometry. An absorption model consisting of five parameters including absorption amplitude, bandgap energy, Urbach energy and two power exponents is developed to describe the absorption characteristics of the β - Ga 2 O 3 single crystal. The anisotropic bandgap energies obtained from the model are 4.938, 5.030 and 5.100 eV, respectively. These values obtained from the model agree well with values derived from the first derivative maximum of k and maximum of n method.
- Subjects
SINGLE crystals; ABSORPTION; ELLIPSOMETRY
- Publication
Modern Physics Letters B, 2023, Vol 37, Issue 14, p1
- ISSN
0217-9849
- Publication type
Article
- DOI
10.1142/S0217984923500306