在以四亚烯为基础的微孔金属有机框架中具有高电荷流动性
Tarun C Narayan1, Tomoyo Miyakai, Shu Seki
1Department of Chemistry, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States.
Journal of the American Chemical Society
|July 26, 2012
概括
研究人员开发了一种新的多孔金属有机框架 (MOF),使用四甲-四乙酸盐. 这种材料具有很高的电荷流动性,使其成为有机半导体应用的有希望的候选材料.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 固态物理 固态物理
背景情况:
- 金属有机框架 (MOF) 是具有多种应用的晶体多孔材料.
- 有机半导体对于电子设备至关重要,但往往受到有限的电荷移动性的困扰.
- 开发具有内在电子导电性的MOF是一个活跃的研究领域.
研究的目的:
- 为了合成一种新的基于四级联体的MOF.
- 研究合成的MOF的结构和电子特性.
- 评估MOF作为有机半导体材料的潜力.
主要方法:
- 合成了四基连接物四亚富烯四二酸盐 (H4TTFTB).
- 使用合成的连接物形成金属有机框架Zn2 ((TTFTB).
- 孔隙性和结构特征的表征.
- 使用闪光光电解-时间解析微波导电性的电荷移动性的测量.
主要成果:
- 一种新的永久多孔MOF,Zn2 (TTFTB),已成功合成.
- MOF的特点是四亚富烯和酸带道的柱状堆.
- 观察到高电荷流动性,相当于领先的有机半导体.
- 材料在去除溶剂后保持其多孔性.
结论:
- Zn2 ((TTFTB) 是第一个永久多孔的MOF,表现出高电荷流动性.
- 这个MOF提供了一个有前途的平台,用于探索多孔材料中的电子特性.
- 这些发现可以激发用于先进半导体应用的新MOF的设计.
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