零维金属化物混合物的光环添加,具有可逆光色
Xiaohui Liu1, Chudong Chen1, Yonghong Xiao1
1Department of Chemistry and Chemical Engineering, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China.
ACS applied materials & interfaces
|June 5, 2024
概括
两种新型金属化物混合物表现出光染色和光诱导裂纹. 一种材料显示可逆的颜色变化和光学写作,而另一种材料显示由于格子应变的明显裂纹.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 摄影化学的使用.
背景情况:
- 金属化物混合物对光电子应用具有前景.
- 光响应材料在光照射时提供可调节的特性.
- 了解结构-属性关系是设计先进材料的关键.
研究的目的:
- 合成和描述两个新的零维 (0D) 金属化物混合体.
- 为了研究它们的光色和光感应裂纹行为.
- 探索分子结构和导向对材料反应的影响.
主要方法:
- L2ZnBr4 [1]和L6Pb3Br12 [2]的单晶合成方法.
- 以450nm的光辐射诱导单晶到单晶的转化,通过L.的 [2+2]光环添加.
- 光物理特征包括UV-Vis吸收和光发光谱学.
- 结构变化和格子应变的分析.
主要成果:
- 这两种混合体都表现出光色和光诱导裂纹.
- 材料1表现出可逆光色,具有快速反应,高转换率和良好的可逆性.
- 材料2显示出明显的光诱导裂纹,颜色变化最小,原因是由于不完整的光环添加而引起的晶格应变.
- 在光环添加后,在两种材料中都观察到光发光变化,这与改变的π电子结合和集群扭曲有关.
- 对于材料1的可逆光学写作被证明是1.
结论:
- 有机配体 (L) 的方向显著影响光环添加的程度和由此产生的材料特性.
- 材料1是可逆光学数据存储的有希望的候选者.
- 这些发现为设计多功能刺激响应金属化物混合体提供了洞察力.
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