非常稳定的MOF型合物发光铁电器
Chen Sun1, Yukong Li1, Jinlin Yin1
1Shanghai Key Laboratory of Chemical Assessment and Sustain ability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Rd., Shanghai, 200092, China.
Angewandte Chemie (International ed. in English)
|May 14, 2024
概括
我们开发了强大的发光金属有机框架 (MOF) 类型的合物铁电. 这些材料具有特殊的稳定性和高的基里温度,为先进的能量转换应用铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 化分子铁电提供可调节的发光,但遭受不稳定性.
- 传统的金属有机框架 (MOF) 通常具有严格的结构,限制铁电性质.
研究的目的:
- 开发基于化MOF的稳定发光铁电材料.
- 调查这些新铁电的结构-属性关系.
主要方法:
- 合成含有化集群的异构形MOFs.
- 结构性,铁电性和发光性质的表征.
- 在各种条件下评估材料的稳定性.
主要成果:
- 在环境和水条件下,合物MOF在15个月以上的时间内表现出异常稳定性.
- 由于可变形[Pb2X]+二次建筑单元,观察到高基里温度 (高达505K).
- 通过共价有机-无机结合,实现了高效的旋转轨道合和长寿命的余发射.
结论:
- 异构型MOF型合物铁电材料在材料稳定性和性能方面取得了突破.
- 这些材料在能源转换应用中表现出有前途的铁电和发光性能.
- 使用可变形SBU的设计策略是实现强大的和功能性的铁电MOF的关键.
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