Dual-mode luminescence tuning of Er3+ doped Zinc Sulfide piezoelectric microcrystals for multi-dimensional anti-counterfeiting and temperature sensing
Dual-mode luminescence tuning of Er3+ doped Zinc Sulfide piezoelectric microcrystals for multi-dimensional anti-counterfeiting and temperature sensing
复制标题
Er3掺杂硫化锌压电微晶的双模发光调谐用于多维防伪和温度传感
DOI：
10.1016/j.optcom.2020.126262
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发表时间：
2020-11
影响因子：
2.4
通讯作者：
Shiqing Xu
中科院分区：
文献类型：
--
作者：
Wen Yan;Gongxun Bai;Renguang Ye;Xiaolei Yang;Hangqing Xie;Shiqing Xu
本研究开发了一种多色多模式发光材料，用于防伪和温度传感。选择稀土离子Er 3+作为发光中心掺杂到ZnS压电材料中。所制备的样品可以通过ZnS基质中镧系离子的能量跃迁产生多色（橙-黄-绿色）和多模（上转换/下移/能量转移）发光。当激发波长或温度被选择为不同时，由于不同的模式发射，发光颜色明显不同。因此，可以实现单一化合物的多重防伪，提高防伪的安全程度，克服了一般荧光材料单一发光方式的缺陷。该工作将为设计和开发新型高集成度功能发光材料奠定实验基础，并有望将开发的材料应用于光学防伪和信息加密领域。
In this study, a multi-color and multi-mode luminescence material has been developed for anti-counterfeiting and temperature sensing. The rare earth ions Er 3+ are selected as the luminescent center to be doped in the piezoelectric material ZnS. The prepared samples can generate multi-color (orange–yellow–green) and multi-mode (upconversion/down-shifting/energy transfer) emission through the energy transitions of lanthanide ions in the ZnS host. When the excitation wavelength or the temperature is selected to be different, the luminous color is obviously different due to different mode emission. Therefore, multiple anti-counterfeiting of a single compound can be realized, the security degree of the anti-counterfeiting can be improved and overcome the defect of the general fluorescent material in a single light-emitting mode. The work will establish experimental basis for the design and development of a new high-integration functional luminescence material, and is expected to use the developed materials in the fields of optical anti-counterfeiting and information encryption.
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