Mechanically induced photons from ultraviolet-C to near-infrared in Tm3+-doped MgF2.
Mechanically induced photons from ultraviolet-C to near-infrared in Tm3+-doped MgF2.
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DOI：
10.1364/oe.494175
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发表时间：
2023-06
期刊：
影响因子：
3.8
通讯作者：
Pei Li;Leipeng Li;Tao Li;Yi-ang Han;Chongyang Cai;Chunzheng Wang;Dengfeng Peng;Hongxiang Kang;Yanmin Yang
中科院分区：
文献类型：
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作者：
Pei Li;Leipeng Li;Tao Li;Yi-ang Han;Chongyang Cai;Chunzheng Wang;Dengfeng Peng;Hongxiang Kang;Yanmin Yang
机械发光（ML）在各个领域中起着至关重要的作用，并在过去的二十年中得到了越来越多的关注。能够产生ML的广泛研究的材料可以分为两组，自供电和陷阱控制。在这里，我们证明了自供电ML和陷阱控制ML可以同时实现在MgF 2：Tm 3+。在外力的激发下，Tm ~（3+）的~ 1I_6 → ~ 3H_6和~ 3H_4 → ~ 3H_6跃迁发生，跃迁范围从紫外-C到近红外。暴露于X射线后，MgF 2：Tm 3+呈现出比不带电样品更强的ML。在高温下清理之后，ML返回到初始水平，这是陷阱控制ML的典型特征。最后，我们展示了MgF 2：Tm 3+在动态防伪和结构检测方面的潜在应用。
Mechanoluminescence (ML) plays a vital role in various fields, and has gained increasing popularity over the past two decades. The widely studied materials that are capable of generating ML can be classified into two groups, self-powered and trap-controlled. Here, we demonstrate that both self-powered ML and trap-controlled ML can be achieved simultaneously in MgF2:Tm3+. Upon stimulation of external force, the 1I6→3H6 and 3H4→3H6 transitions of Tm3+ are observed, ranging from the ultraviolet-C to near-infrared. After exposure to X-rays, MgF2:Tm3+ presents a stronger ML than the uncharged sample. After cleaning up at high temperatures, the ML returns to the initial level, which is a typical characteristic of trap-controlled ML. In the end, we demonstrate the potential applications of MgF2:Tm3+ in dynamic anti-counterfeiting, and structure inspection.