Persistent phosphor as a printing anti‐counterfeiting material has attracted strong attention owing to its inherent luminescent decay process and multi‐mode luminescence characteristics under external field stimulation. However, the dynamic persistent luminescence (PersL) pattern of a single material is only manifested in color changes and still faces the problem of being easily decrypted. Herein, a multi‐color luminescent material with a wide range distribution of traps is developed, which can emit strong white PersL. In addition, the phosphors show an intelligent response of thermo‐stimulated luminescence to ambient temperature via recalling the charging temperature of the traps. The PersL mechanism is proposed based on electron transfer between PbO6 and TbO6 octahedrons through the O bridging. Based on the intelligent response of thermo‐stimulated luminescence to temperature, high‐throughput multi‐channel luminescence anti‐counterfeiting can be achieved on a single phosphor recording layer. This study not only provides further insights into the PersL mechanism, but also opens a new door for constructing intelligent responsive anti‐counterfeiting materials.

中文翻译：

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通过电荷载流子对温度的响应，在存储荧光粉中实现先进的智能防伪


持久性荧光粉作为一种印刷防伪材料，由于其固有的发光衰变过程和在外场刺激下的多模式发光特性而受到广泛关注。然而，单一材质的动态持续发光 （PersL） 图案仅表现为颜色变化，仍然面临容易解密的问题。在此，开发了一种具有广泛陷阱分布的多色发光材料，它可以发射强白色 PersL。此外，荧光粉通过调用捕集阱的充电温度，显示出热刺激发光对环境温度的智能响应。PersL 机制是基于 PbO6 和 TbO6 八面体之间通过 O 桥的电子转移而提出的。基于热刺激发光对温度的智能响应，可以在单个荧光粉记录层上实现高通量多通道发光防伪。这项研究不仅为PersL机制提供了进一步的见解，也为构建智能响应式防伪材料打开了一扇新的大门。