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Influence of Pressure on Structural, Optical and Electronic Properties of As-ZnO
Abstract:
First-principles calculations are performed to study the electronic structures and optical properties of the As-doped ZnO under pressure up to 8 GPa. After doped, the electron density difference demonstrates the considerable electron charge density redistribution, which induces the effect of As-doped ZnO to increase the charge overlap between atoms. Moreover, as the pressure increases, the conduction and valence band shift to lower and higher energies, respectively. The shifts of the conduction and valence band result in a decreasing band gap. Additionally, the calculated optical constants of As-doped ZnO under pressure are also presented. Keywords: high pressure; As-doped ZnO; optical properties, Density functional theory.
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110-114
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June 2019
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© 2019 Trans Tech Publications Ltd. All Rights Reserved
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