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Solid-state reaction synthesis of β-NaREF4: Yb3+, Er3+ (RE = Y, Lu, La, Gd) phosphors and the upconversion luminescence property under 1550 nm excitation

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Abstract

Well-crystallized NaREF4: Yb3+, Er3+ (RE = Y, Lu, La, Gd) phosphors were synthesized by a solid-state reaction method. X-ray diffraction characterization showed that the synthesized samples were all pure hexagonal phase after a calcination process on the as-prepared precursors at 550 °C for 2 h by using Na2CO3 as a fluxing agent. Upconversion spectral analysis showed that under a 1550 nm laser diode excitation, the samples emitted dominant green emission centered at 540 nm and red emission centered at 654 nm, which corresponded to the 2H11/2/4S3/2→4I15/2 and 4F9/2→4I15/2 transition of Er3+ ions, respectively. Color-tunable upconversion luminescence was realized by the variation of Yb3+/Er3+ doping concentration and the types of the host materials, indicating the synthesized hexagonal Yb3+ and Er3+ co-doped NaREF4 phosphors potential applications in many fields, especially in biological imaging and detection.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 61307118, 50472027).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, China

    Hongwei Liu, Xiyan Zhang, Nengli Wang, Zhaohui Bai, Xing Gao, Liping Lu, Quansheng Liu, Xiaoyun Mi, Haiying Sun & Xiaochun Wang

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  1. Hongwei Liu
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  2. Xiyan Zhang
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Correspondence to Xiyan Zhang or Nengli Wang.

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Liu, H., Zhang, X., Wang, N. et al. Solid-state reaction synthesis of β-NaREF4: Yb3+, Er3+ (RE = Y, Lu, La, Gd) phosphors and the upconversion luminescence property under 1550 nm excitation. J Mater Sci: Mater Electron 29, 7531–7538 (2018). https://doi.org/10.1007/s10854-018-8745-5

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