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UV-assisted mechanoluminescence properties of SrAl2O4:(Eu,Dy) for impact sensing

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Abstract

SrAl2O4:(Eu,Dy) is one of the most promising mechanoluminescence materials that have potential applications in stress sensing, lighting, imaging and energy conversion. However, the ML intensity decays with the afterglow time of SrAl2O4:(Eu,Dy), which hampers its application in the real world. Here, the mechanoluminescence property of SrAl2O4:(Eu,Dy) was investigated by impact of a load. A method was proposed to overcome the drawback of the mechanoluminescence decay behavior associated with the afterglow time. During the measurement of mechanoluminescence, continuous UV irradiation on SrAl2O4:(Eu,Dy) can effectively realize steady-state mechanoluminescence that is independent of the afterglow time. The underlying mechanism is discussed in this paper.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 61372025).

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Authors and Affiliations

  1. College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, People’s Republic of China

    Qinan Mao, Zhian Chen, Zhenguo Ji & Junhua Xi

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  1. Qinan Mao
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  2. Zhian Chen
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  3. Zhenguo Ji
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  4. Junhua Xi
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Correspondence to Qinan Mao or Zhenguo Ji.

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Mao, Q., Chen, Z., Ji, Z. et al. UV-assisted mechanoluminescence properties of SrAl2O4:(Eu,Dy) for impact sensing. J Mater Sci 52, 8370–8376 (2017). https://doi.org/10.1007/s10853-017-1053-2

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  • DOI: https://doi.org/10.1007/s10853-017-1053-2

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