通过扭曲的hexabenzocoronene连接物进行电导的结合非平面铜-甲基酸导电金属-有机框架
Guolong Xing1, Jingjuan Liu2, Yi Zhou3
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
Journal of the American Chemical Society
|April 17, 2023
概括
研究人员使用可溶性非平面配体开发了新的导电金属有机框架 (c-MOF). 这种方法提高了先进电子和光电子应用的电导率和电荷载体移动性.
科学领域:
- 材料科学
- 化学学
- 纳米技术
背景情况:
- 导电金属有机框架 (c-MOF) 由于其高导电性和电荷载体可移动性,对电子具有前景.
- 传统平面配体的溶解性较差限制了c-MOF的合成和应用.
- 非平面配体在有机溶剂中提供更好的溶解性,使新的c-MOF结构成为可能.
研究的目的:
- 使用可溶性,非平面扭曲的六甲 (c-HBC) 衍生物合成新型c-MOF.
- 研究连接体对称性和协调数对c-MOF结构和特性的影响.
- 评估合成的c-MOF的电导率和电荷载体移动性.
主要方法:
- 通过使用多位基c-HBC连体合成三种c-MOFs (c-HBC-6O-Cu,c-HBC-8O-Cu,c-HBC-12O-Cu).
- 结构特征以确定几何和包装方式.
- 电导率测量
- 时间解析的特拉赫兹光谱测定电荷载体的移动性.
主要成果:
- 成功合成了三种具有不同几何形状和包装的c-MOF.
- c-HBC-12O-Cu显示出最高的电导率 (3.31 S m-1).
- 在基于c-HBC的c-MOF中,电荷载体的移动性在38至64cm2V-1s-1之间.
结论:
- 非平面,可溶性联体对合成高性能c-MOF有效.
- 连接器设计提供了一个模块化方法来调整c-MOF结构和充电传输特性.
- 这项工作扩大了对光电子和电子的优良电子性能的c-MOF家族.
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