Back to Search
Start Over
Native defects and their complexes in spinel LiGa5O8.
- Source :
-
Journal of Applied Physics . 6/21/2024, Vol. 135 Issue 23, p1-8. 8p. - Publication Year :
- 2024
-
Abstract
- Recently, LiGa 5 O 8 was identified as a cubic spinel type ultra-wide-bandgap semiconductor with a gap of about 5.36 eV and reported to be unintentionally p -type. Here, we present first-principles calculations of native defects and their various complexes to try to explain the occurrence of p -type doping. Although we find Li vacancies (0.74 eV above VBM) to be shallower acceptors than in LiGaO 2 (1.63 eV above VBM), and becoming slightly shallower in complexes with donors such as V O (0.58 eV above VBM) and Ga Li antisites (0.65 eV above VBM), these V Li based defects are not sufficiently shallow to explain p -type doping. The dominant defects are donors and, in equilibrium, the Fermi level would be determined by compensation between donors and acceptors and pinned deep in the gap. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SPINEL
*FERMI level
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 135
- Issue :
- 23
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 178024042
- Full Text :
- https://doi.org/10.1063/5.0209774