解密缺陷介导的反热灭多模式发光器,用于信息加密.
Yuefei Xiang1, Lei Zhong1, Youwang Long1
1Zhuhai Key Laboratory of Optoelectronic Functional Materials and Membrane Technology /School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai, 519082, China.
Advanced materials (Deerfield Beach, Fla.)
|November 20, 2025
概括
研究人员开发了用于光学加密的可调节多色发射的新型SrZnP2O7:RE光器. 这些材料具有出色的抗热火性能,对于先进的防伪和X射线成像应用至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的光度是非常的低的.
背景情况:
- 多模式发光材料是光学信息加密的关键.
- 通过反热火 (ATQ) 实现高性能多式联通发光是一个重大挑战.
研究的目的:
- 开发具有可调节多色排放和ATQ特性的新型SrZnP2O7:RE (RE = Sm3+,Dy3+,Tb3+,Tm3+) .
- 调查缺陷工程和收费补偿在调节发光中的作用.
主要方法:
- 合成具有变电荷补偿器 (Li+,Na+,K+) 的 SrZnP2O7:RE 体.
- 多模式发光的特征:光发光 (PL),放射发光 (RL),机械发光 (ML),热发光 (TL) 和持久发光 (PersL).
- 对陷分布和影响发光和ATQ行为的缺陷状态的分析.
主要成果:
- 体表现出跨越350-750纳米的多式发光.
- 电荷补偿精确调节陷密度,增强PL,量子效率,RL强度和X射线后照.
- 在Sm/Dy/Tm兴奋剂光体中设计的深陷表现出了异常的ATQ行为.
结论:
- 缺陷工程和电荷补偿对于定制多模式发光和ATQ特性至关重要.
- 开发的光剂对X射线成像和高安全性防伪/加密具有很大的前景.
- 这项工作提供了对缺陷-发光关系的见解,以及设计先进光学材料的框架.
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