Computational study of defect complexes in β-LiGaO2 and their relation to the donor–acceptor-pair recombination
Abstract
Hybrid functional calculations are presented for defects in LiGaO2 with the fraction of non-local exchange adjusted to reproduce the recently reported exciton gap of 6.0 eV. We study how the defect transition levels of the main native defects change with respect to the band edges compared to earlier calculations which assumed a smaller bandgap near 5.1 eV. In addition, we consider defect complexes formed by combining the main native donor GaLi with the main acceptors, VLi and LiGa antisites as a function of their relative position. These results are used to tentatively identify the photoluminescence bands previously assigned to donor–acceptor-pair recombination.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 08, 2023
- Source ID
- 10.1063/5.0146981
Entities
People
- Adisak Boonchun
- Klichchupong Dabsamut
- Walter R. L. Lambrecht
Organizations
- Air Force Office of Scientific Research
- Case Western Reserve University
- Kasetsart University