TY - JOUR T1 - Comprehensive Investigation of Structural, Electronic and Optical Properties of KBaP Using Density Functional Theory AU - Amine, Aidouni Ahmed AU - Mounir, Ould - Mohamed AU - Abdelkader, Aissat AU - Souheil, Belbachir PY - 2024 DA - December Y2 - 2024 DO - 10.55549/epstem.1598068 JF - The Eurasia Proceedings of Science Technology Engineering and Mathematics JO - EPSTEM PB - ISRES Publishing WT - DergiPark SN - 2602-3199 SP - 123 EP - 130 VL - 32 LA - en AB - In this study, we investigate the structural, mechanical, dynamical, electronic, thermodynamic, and optical properties of KBaP using density functional theory (DFT) within the plane-wave pseudopotential method as implemented in Quantum ESPRESSO. Our structural analysis reveals that the β-phase of the halfHeusler structure is the most stable, with an equilibrium lattice parameter of 7.36 Å. Mechanical and dynamical stability are confirmed through the calculation of elastic constants and phonon dispersion, respectively. Electronic properties show that KBaP is a direct bandgap semiconductor with a bandgap of 1.30 eV at the X-X point, suggesting potential applications in optoelectronic devices. Additionally, we explore the thermodynamic and optical properties, further demonstrating the potential of KBaP in energy-related applications. Our findings provide a comprehensive understanding of KBaP, establishing it as a promising material for future technological developments. KW - Half Heusler alloys KW - Electronic properties KW - Optical properties KW - Phonon dispersion curves CR - Amine, A.A., & Mounir, O.M.., Abdelkader, A., & Souheil, B. (2024). Comprehensive investigation of structural, electronic and optical properties of KBaP using density functional theory. The Eurasia Proceedings of Science, Technology, Engineering & Mathematics (EPSTEM), 32, 123-130. UR - https://doi.org/10.55549/epstem.1598068 L1 - https://dergipark.org.tr/en/download/article-file/4424787 ER -