连接体工程提高了光发光协调聚合物的电导率
Feng Hu1, Yang Chen1, Mengkai Zuo1
1Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China.
Inorganic chemistry
|July 21, 2025
概括
研究人员设计了具有增强电导率的光发光协调聚合物 (CP). 连接物修饰通过控制 π-π 堆叠相互作用来改善电荷传输,这对于能源应用至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 纳米技术纳米技术
背景情况:
- 金属有机框架 (MOF) 和协调聚合物 (CP) 在能源应用中显示出潜力,但由于电子孔再组合,它们的电导率较差.
- 在MOF/CP中对负载运输特性进行可控的调节是一个重大挑战.
研究的目的:
- 开发一种连接体工程策略,以提高光发光CP的电导率.
- 为了研究连接体结构,π-π堆叠和电荷传输特性之间的关系.
主要方法:
- 合成了经过基改性三基连接物和Cu (I) 金属中心,以创建光发光CP.
- 调制的连接体替代剂和异构体,以实现多种结构拓和 π-π 堆叠序列.
- 系统地研究了结构-属性关系,将π-π堆叠与光发光量子产量 (PLQY) 和电导率相关联.
主要成果:
- 通过连接体工程,通过各种 π-π 堆叠序列实现了独特的结构拓.
- 观察到PLQY从19.36%下降到7.89%随着π-π堆叠的增加.
- 在室温下,随着π-π堆叠的加剧,电导率从9.04 × 10-7显著增加到1.11 × 10-5 S cm-1 在室温下.
结论:
- 连接体工程是一种有效的策略,用于定制光发光CP中的电荷传输特性.
- π-π堆叠相互作用在控制这些材料的导电性能方面发挥着至关重要的作用.
- 这项工作提供了一种分子方法,用于提高MOF/CP的电导率,用于储存和转换能量.
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