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Experimental and theoretical investigations of the electronic structure and luminescent properties of undoped and rare-earth-doped ScNbO4

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Abstract

The distorted octahedral crystal field environment in the monoclinic wolframite structure is generating excitement due to its apparently quite favorable for efficient luminescence. In this work, undoped, Eu3+-doped and Yb3+/Er3+-codoped ScNbO4 with monoclinic wolframite structure were synthesized with the traditional high-temperature solid-state reaction method. An indirect bandgap of 3.903 eV was determined for ScNbO4 host with the well-known first-principle calculation. Its electronic and optical properties were revealed with the first-principle calculation simultaneously. Besides, the self-activated luminescent properties of undoped ScNbO4 were investigated in experimental. The luminescent properties Eu3+-doped and Yb3+/Er3+-codoped ScNbO4 were also present and the luminescent mechanisms were discussed. All the obtained results can provide an insightful understanding of ScNbO4 with monoclinic wolframite structure.

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Acknowledgements

The University Natural Science Research Project of Anhui Province, China (KJ2019ZD06); Fund of Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences (2008DP173016); Natural Science Foundation of Anhui Province (1808085MF205) supported this study.

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Authors and Affiliations

  1. School of Science and Engineering of Mathematics and Physics, Anhui University of Technology, Maanshan, 243002, Anhui, People’s Republic of China

    Hao Sun, Changping Yu, Leidong Zheng, Fan Yang, Qinghua Mao & Shoujun Ding

  2. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences, Fujian, 350002, People’s Republic of China

    Shoujun Ding

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  1. Hao Sun
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  2. Changping Yu
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  3. Leidong Zheng
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  4. Fan Yang
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  5. Qinghua Mao
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Correspondence to Shoujun Ding.

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Sun, H., Yu, C., Zheng, L. et al. Experimental and theoretical investigations of the electronic structure and luminescent properties of undoped and rare-earth-doped ScNbO4. J Mater Sci: Mater Electron 31, 10260–10266 (2020). https://doi.org/10.1007/s10854-020-03572-8

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  • DOI: https://doi.org/10.1007/s10854-020-03572-8

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