Molecular ordering of high-performance soluble molecular semiconductors and re-evaluation of their field-effect transistor characteristics
Molecular ordering of high-performance soluble molecular semiconductors and re-evaluation of their field-effect transistor characteristics
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DOI：
10.1002/adma.200800799
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发表时间：
2008-09-17
影响因子：
29.4
通讯作者：
Takimiya, Kazuo
中科院分区：
文献类型：
--
作者：
Izawa, Takafumi;Miyazaki, Eigo;Takimiya, Kazuo
长烷基链之间的分子间疏水相互作用（扣件效应）可以增强2，7-二烷基[1]苯并噻吩并[3，2-B] [1]苯并噻吩（C-n-BTBT; n=8，10，12）半导体层的分子间重叠，这有助于改善其有机场效应晶体管的电特性。通过旋涂薄膜的面内和面外X射线衍射以及单晶X射线分析阐明了薄膜状态下C-n-BTBT的分子有序性。
Intermolecular hydrophobic interactions between long alkyl chains (fastener effect) can enhance the intermolecular overlap of the semiconducting layer of 2,7-dialkyl[1]benzothieno[3,2-b] [1] benzothiophenes (C-n-BTBTs; n=8, 10, 12), which contributes to improvements of the electric characteristics of their organic field-effect transistors. The molecular ordering of C-n-BTBTs in the thin-film state is elucidated by means of in-plane and out-of-plane X-ray diffraction of spin-coated thin films, and single crystal X-ray analysis.