| First-principles study of electronic structure and optical properties of Er:Lu2O3 |
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| 作者姓名： | Xian Zhang Honglei Zhao Sen Gao Qingfeng Zeng |
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| 作者单位： | School of Advanced Materials and Nanotechnology;International Center for Materials Discovery |
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| 基金项目： | Project support by the National Natural Science Foundation of China(51372203.51332004,51571166). |
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| 摘 要： | In the present computational study,we found that Er:Lu2O3materials have promise for application in laser applications.The crystal structure and the electronic and optical properties of Er:Lu2O3materials were studied using first-principle calculations under the framework of density functional theory.Based on the experimental and calculated results,the structure of Lu2O3was established.The calculated results show that doping by Er3+can effectively improve its absorption coefficient in the ultraviolet region and improve the static dielectric constant of Lu2O3.As the doping concentration of Er3+increases,the energy of the valence band electrons excited to the conduction band decreases,and the transition is more likely to occur.The absorption coefficient,reflectance,and electron energy loss spectroscopy are bathochromic shifted.The Lu2-xErxO3(02O3.
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| 关 键 词： | Electronic structure First principles Optical property Er:Lu2O3 Rare earths |
| 收稿时间： | 11 December 2019 |
First-principles study of electronic structure and optical properties of Er:Lu_2O_3 |
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| Xian Zhang,Honglei Zhao,Sen Gao,Qingfeng Zeng.First-principles study of electronic structure and optical properties of Er:Lu2O3[J].Journal of Rare Earths,2021,39(4):453-459. |
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| Authors: | Xian Zhang Honglei Zhao Sen Gao Qingfeng Zeng |
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| Affiliation: | 1. School of Advanced Materials and Nanotechnology, Xidian University, Xi''an 710071, China;2. International Center for Materials Discovery, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi''an 710072, China |
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| Abstract: | In the present computational study, we found that Er:Lu2O3 materials have promise for application in laser applications. The crystal structure and the electronic and optical properties of Er:Lu2O3 materials were studied using first-principle calculations under the framework of density functional theory. Based on the experimental and calculated results, the structure of Lu2O3 was established. The calculated results show that doping by Er3+ can effectively improve its absorption coefficient in the ultraviolet region and improve the static dielectric constant of Lu2O3. As the doping concentration of Er3+ increases, the energy of the valence band electrons excited to the conduction band decreases, and the transition is more likely to occur. The absorption coefficient, reflectance, and electron energy loss spectroscopy are bathochromic shifted. The Lu2-xErxO3 (0 < x ≤ 0.09375) system still retains a low absorption coefficient reflectance in the mid-infrared and visible regions. Our calculations therefore show that rare earth Er3+ doping can effectively regulate the electronic structure and optical properties of Lu2O3. |
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| Keywords: | Electronic structure First principles Optical property Rare earths |
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