Koopmans-tuned Heyd-Scuseria-Ernzerhof hybrid functional calculations of acceptors in GaN

DO Demchenko, M Vorobiov, O Andrieiev… - Physical Review B, 2024 - APS
The Heyd-Scuseria-Ernzerhof (HSE) hybrid functional has become a widely used tool for
theoretical calculations of point defects in semiconductors. It generally offers a satisfactory …

Identity of the shallowest acceptor in GaN

MA Reshchikov, DO Demchenko, B McEwen… - Physical Review B, 2025 - APS
The Be-related ultraviolet luminescence band with a maximum at about 3.38 eV in GaN: Be
is caused by the shallowest acceptor in GaN with the−/0 transition level at 0.113 eV above …

[HTML][HTML] Nitrogen vacancy–acceptor complexes in gallium nitride

M Vorobiov, DO Demchenko, O Andrieiev… - Journal of Applied …, 2024 - pubs.aip.org
We used photoluminescence (PL) spectroscopy and first-principles calculations to
investigate GaN doped with Mg, Be, and implanted with Ca. The PL spectra revealed distinct …

Defects in semiconductors

CE Dreyer, A Janotti, JL Lyons… - Journal of Applied …, 2024 - pubs.aip.org
Defects are crucial to understanding semiconductor materials and designing semiconductor-
based devices. In using the term “defects,” we include not only native point defects (such as …