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Thermally boosted upconversion and downshifting luminescence in Sc2(MoO4)3:Yb/Er with two-dimensional negative thermal expansion

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  • Jinsheng Liao

    (Jiangxi University of Science and Technology)

  • Minghua Wang

    (Jiangxi University of Science and Technology)

  • Fulin Lin

    (Chinese Academy of Sciences
    Chinese Academy of Sciences)

  • Zhuo Han

    (Jiangxi University of Science and Technology)

  • Biao Fu

    (Jiangxi University of Science and Technology)

  • Datao Tu

    (Chinese Academy of Sciences)

  • Xueyuan Chen

    (Chinese Academy of Sciences)

  • Bao Qiu

    (Chinese Academy of Sciences)

  • He-Rui Wen

    (Jiangxi University of Science and Technology)

Abstract

Rare earth (RE3+)-doped phosphors generally suffer from thermal quenching, in which their photoluminescence (PL) intensities decrease at high temperatures. Herein, we report a class of unique two-dimensional negative-thermal-expansion phosphor of Sc2(MoO4)3:Yb/Er. By virtue of the reduced distances between sensitizers and emitters as well as confined energy migration with increasing the temperature, a 45-fold enhancement of green upconversion (UC) luminescence and a 450-fold enhancement of near-infrared downshifting (DS) luminescence of Er3+ are achieved upon raising the temperature from 298 to 773 K. The thermally boosted UC and DS luminescence mechanism is systematically investigated through in situ temperature-dependent Raman spectroscopy, synchrotron X-ray diffraction and PL dynamics. Moreover, the luminescence lifetime of 4I13/2 of Er3+ in Sc2(MoO4)3:Yb/Er displays a strong temperature dependence, enabling luminescence thermometry with the highest relative sensitivity of 12.3%/K at 298 K and low temperature uncertainty of 0.11 K at 623 K. These findings may gain a vital insight into the design of negative-thermal-expansion RE3+-doped phosphors for versatile applications.

Suggested Citation

  • Jinsheng Liao & Minghua Wang & Fulin Lin & Zhuo Han & Biao Fu & Datao Tu & Xueyuan Chen & Bao Qiu & He-Rui Wen, 2022. "Thermally boosted upconversion and downshifting luminescence in Sc2(MoO4)3:Yb/Er with two-dimensional negative thermal expansion," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29784-6
    DOI: 10.1038/s41467-022-29784-6
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    References listed on IDEAS

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    1. Shuya Liu & Xiaoyu Fang & Bo Lu & Dongpeng Yan, 2020. "Wide range zero-thermal-quenching ultralong phosphorescence from zero-dimensional metal halide hybrids," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
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