通过分子晶体中的结合共结晶方法来增强刺激发射
Haoxuan Ren1, Jiasong Hu1, Ying-Jie Liu2
1State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University, Qianjin Street No. 2699, Changchun, 130012, China.
Angewandte Chemie (International ed. in English)
|July 29, 2024
概括
在有机固态材料中实现刺激排放是具有挑战性的. 这项研究使用结合共结晶来成功地促进分子晶体中的刺激发射和放大自发发射.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 光物理学的光学物理学
背景情况:
- 由于分子堆叠效应,固态有机π结合分子中的刺激发射 (SE) 很困难.
- 排泄物形成和改变的光物理过程阻碍了母晶体中高效的SE.
研究的目的:
- 在分子晶体中实现刺激发射,使用一种新的联合结晶策略.
- 为了研究键共结晶对有机分子光物理性质的影响,用于激光应用.
主要方法:
- 使用1,4-bis-p-cyanostyrylbenzene (CNDSB) 和不同的共同形成物合成了两个与结合的共同晶体.
- 分析了晶体结构,以了解分子排列和分子间相互作用.
- 评估光物理性质,包括刺激发射和放大自发发射 (ASE).
主要成果:
- 同结晶策略成功实现了在基于CNDSB的晶体中激发发射和放大自发发射 (ASE).
- 消除了有害的催化体形成,导致更高的辐射衰变速率 (kr) 和更短的激发状态寿命.
- 由于单轴分子排列,实现了更大的刺激辐射截面和高度极化辐射.
结论:
- 二元联合结晶是一种可行的策略,用于增强有机固态材料中的刺激发射.
- 这种方法为设计有机固态激光器提供了新的见解,提高了性能.
- 开发的共同晶体显示了在有机固态激光器中应用的潜力.
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