【Others Papers】First-Principles Investigation on Electronic and Optical Propertie of Orthorhombic κ-Ga₂O₃

      Researchers from the Xi’an University of Posts and Telecommunications have published a dissertation titled " First-Principles Investigation on Electronic and Optical Propertie of Orthorhombic κ-Ga₂O₃" in 2025 4th International Symposium on Semiconductor and Electronic Technology (ISSET).

Abstract

      This study provides a systematic first-principles analysis of the electronic and optical characteristics of the κ-phase gallium oxide (κ−Ga₂O₃) for integrated circuit and optoelectronic applications. Structural optimization was performed, followed by band structure and density of states calculations applying the generalized gradient approximation (GGA), revealing a quasi-direct bandgap of 2.38 eV. The dielectric function, absorption coefficient, energy loss function, refractive index, and reflectivity were comprehensively analyzed through density functional theory (DFT). These theoretical results demonstrate the potential of κ-Ga₂O₃ for power electronics and photonic devices, providing fundamental insights for future device development.

DOI：

https://doi.org/10.1109/ISSET66828.2025.11184923