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  • Received: May. 14, 2019

    Accepted: Jun. 26, 2019

    Posted: Sep. 12, 2019

    Published Online: Sep. 12, 2019

    The Author Email: Ruoshan Lei (leiruo@163.com), Shiqing Xu (sxucjlu@163.com)

    DOI: 10.3788/COL201917.111601

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    Xin Liu, Ruoshan Lei, Feifei Huang, Degang Deng, Huanping Wang, Shilong Zhao, Shiqing Xu. Upconversion luminescence, intrinsic optical bistability, and optical thermometry in Ho3+/Yb3+: BaMoO4 phosphors[J]. Chinese Optics Letters, 2019, 17(11): 111601

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Chinese Optics Letters, Vol. 17, Issue 11, 111601 (2019)

Upconversion luminescence, intrinsic optical bistability, and optical thermometry in Ho3+/Yb3+: BaMoO4 phosphors

Xin Liu, Ruoshan Lei*, Feifei Huang, Degang Deng, Huanping Wang, Shilong Zhao, and Shiqing Xu**

Author Affiliations

  • College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China

Abstract

Ho3+/Yb3+: BaMoO4 phosphors with different concentrations were fabricated by a gel combustion method. The upconversion (UC) luminescence, intrinsic optical bistability, and the corresponding mechanisms were reported for the present system. The optical thermometric properties based on red (5F55I8) and green (5F4/5S25I8) emissions were studied. The sensing sensitivities could be tuned by manipulating the cooperative energy transfer process. The highest absolute sensitivity was 99 × 10−4 K−1 at 573 K, which is larger than that of many previous UC materials.