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- W4310632273 abstract "One of the most active research areas in the world is the search for effective materials for use in the fields of optoelectronics and photovoltaics. The potential of materials like ATiO3 (A=Ti,Sr) is yet largely untapped. Ab initio studies based on density functional theory (DFT) have been used to comprehensively explore the structural, electronic, elastic, and optical properties of Ti2O3 and SrTiO3. In this study, the ground state properties were computed with spin-orbit coupling (SOC), without spin-orbit coupling, and with the inclusion of Hubbard U parameter. The electronic bandgaps of Ti2O3 have been found to be 0.059 eV without SOC, 0.131 eV with SOC, and 1.665 eV with Hubbard U. Electronic bandgaps of 1.612 eV, 1.761 eV, and 2.769 eV have been obtained for SrTiO3, respectively, without SOC, with SOC, and with Hubbard U. In every single case, it has been found that Ti-4d orbitals predominate close to the top of the valence band. The bandgap and estimated lattice constants for ATiO3 (A=Ti,Sr) were not significantly affected by SOC. The mechanical stability test showed that ATiO3 (A=Ti,Sr) is mechanically stable at zero pressure. The optical band gap has been seen to increase when Hubbard U is taken into account. In general, the Hubbard U parameter enhances bandgap and optical property predictions. Ti2O3 and SrTiO3 are good UV-Vis absorbers and appropriate for photovoltaic applications owing to the optical absorption coefficient curves being found to cover the ultraviolet to visible (UV-Vis) ranges." @default.
- W4310632273 created "2022-12-13" @default.
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- W4310632273 date "2022-12-01" @default.
- W4310632273 modified "2023-10-16" @default.
- W4310632273 title "An insight into the properties of ATiO3 (A=Ti,Sr) materials for photovoltaic applications" @default.
- W4310632273 doi "https://doi.org/10.48550/arxiv.2212.00635" @default.
- W4310632273 hasPublicationYear "2022" @default.
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