易于合成Ln-Doped气结合有机框架,具有稀土特征的长时间持久发光
Zheng Wang1, Jun-Jie Pan1, Xin-Qi Chen1
1Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|August 24, 2024
概括
研究人员开发了一种新方法,用于制造稀土合有机材料,用于可调节的发光. 这些材料对先进的信息存储和加密应用非常有前途.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 固态物理 固态物理
背景情况:
- 可调节的发光对于信息存储和加密至关重要.
- 将有机长时间持久发光 (LPL) 材料与稀土 (RE) 发光相结合,提供了协同效益.
- 有机宿主材料可以使RE发光变得敏感,而Förster共振能量转移 (FRET) 可以将有机光与RE发射联系起来.
研究的目的:
- 通过一种新的"一"方法,合成离子合的离子合有机框架 (HOF) 材料.
- 通过避免分子三重能量灭绝,开发具有稀土特性的有机LPL材料.
- 为了创建用于先进应用的多功能LPL材料.
主要方法:
- 采用了通过高温化加热的单,in-situ pyrolytic凝结方法.
- 兰化物离子被入HOF材料中.
- 材料的表征包括单晶X射线衍射,光谱分析和理论计算.
主要成果:
- 胺离子合的HOF材料已成功合成.
- 复合材料U-Tb-100表现出绿色的LPL,具有高发光量子产量 (56.4%) 和可调节的持久性 (2-3秒).
- 有效的 (U) 单体对RE离子和U与RE复合体之间的FRET的敏感化被确定为增强发光的关键机制.
结论:
- 开发的 pyrolytic 凝结方法使得有机 LPL 材料能够产生具有理想的 RE 特性.
- 由于其可调节和长寿命的发光,U-Tb-100材料在信息存储和加密方面的应用潜力显著.
- 这一战略扩大了HOF材料的实用性,并为设计先进的发光材料提供了途径.
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