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一个C₇₀ Buckybowl的合理功能为了使一个C₇₀:Buckybowl Cocrystal用于有机半导体应用

Guangpeng Gao, Meng Chen, Josiah Roberts^1,2

¹Department of Chemistry , University of Kentucky , Lexington , Kentucky 40506-0055 , United States.

Journal of the American Chemical Society

|January 4, 2020

概括

具有独特替代物的新型buckybowls具有碗对碗的倒置和可调节的光电子特性. 这些富勒烯碎片对先进的有机半导体应用有前途,包括C70的共晶体.

科学领域:

材料科学
有机化学
纳米技术

背景情况:

由于其独特的形状和光电子特性,富勒烯碎片或buckybowls越来越有趣.
对于有机电子技术的进步, 新型的buckybowls的合成和表征至关重要.

研究的目的:

用不同的元替代物合成和描述基于C70的新型buckybowls.
研究这些替代物对分子几何学,电子性质和晶体包装的影响.
评估这些半导体在有机设备中的潜力.

主要方法:

用三基或2,4,6-三基组替代的二基[4,3,2,1-fghi:4',3',2',1'-opqr]烯的合成.
合成化合物的特性,包括结构和电子性质分析.
使用C70合成的材料及其共晶体制造和测试有机场效应晶体管 (OFET).

主要成果:

合成了两种新型buckybowls,1 (TES-ethynyl) 和2 (triisopropylphenyl),在室温下显示了碗对碗的反转.
1中的TES-乙烯基替代剂导致了较弱的芳香度和1D堆叠,而2中的三烯基替代剂则改变了晶体包装.
1-C70共晶体表现出双极运输,电子和孔的移动性分别达到0.40和0.07厘米V-1s-1.
化合物1在OFET中显示出0. 31cm2V-1s-1的孔移动性.

结论:

巴基上的替代组显著影响它们的几何,电子和包装特性.
合成的buckybowls及其共晶体显示出高性能有机半导体应用的潜力.
这项研究突出了buckybowls在设计有机电子材料中的多功能性.

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