具有可逆发光的高效化,通过无形晶体过渡进行切换
Guang-Hsun Tan1, Hao-Cheng Lin1, Hao-Chi Liang2
1Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
ACS applied materials & interfaces
|October 3, 2024
概括
这项研究引入了基于的新型发光刺激响应材料 (LSRMs),作为稀土元素的替代品. 这些材料作为可重复使用的时间温度指示器和高性能X射线闪光灯.
科学领域:
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
- 固态化学 固态化学
背景情况:
- 发光刺激响应材料 (LSRMs) 对光电子非常重要,但依赖稀土元素带来了挑战.
- 开发富含土壤的LSRMs对于可持续的技术进步至关重要.
研究的目的:
- 证明基于的新型LSRMs作为兰坦化物的替代品.
- 探索它们在时间温度指示器和X射线闪光器等应用中的潜力.
主要方法:
- 合成和表征两个化化化合物: (R-PEA) 2MnBr4和 (S-PEA) 2MnBr4.
- 通过灭和回火,研究无形 (红色发射) 和晶体 (绿色发射) 状态之间的可逆过渡.
- 评估性能作为时间温度指示器和X射线闪光灯.
主要成果:
- 成功合成并证明了两种基于的LSRM,即 (R-PEA) 2MnBr4和 (S-PEA) 2MnBr4.
- 在动态稳定的红色发射无形状态和热力学稳定的绿色发射晶体状态之间实现了可逆过渡.
- 展示了可重复使用的基于化的时间温度指示器和具有低检测极限 (18.1 nGy/s) 和高空间分辨率 (30.0 lp/mm) 的X射线闪电器.
结论:
- 化物表现出多功能性,为稀土材料提供可持续的替代品.
- 展示的材料显示出在传感和成像领域的先进应用的前景.
- 这项工作为地球上丰富的发光材料的研究开辟了新的途径.
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