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首页> 外文期刊>Crystal growth & design >Close packing in crystals of cyanophenylene/thienylene derivatives
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Close packing in crystals of cyanophenylene/thienylene derivatives

机译:紧密堆积在氰基亚苯基/亚噻吩衍生物的晶体中

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摘要

A new molecule, designed as a potential active material in field effect transistor (FET) devices and constituted by p-cyanophenylene and - thienylene residues, has been synthesized and characterized by electrochemical, photophysical, and structural points of view. Its crystal structure, derived from powder XRD data, displays higher close packing as compared with molecular crystals constituted by similar residues. The crystallization aptness has been demonstrated by growing solid films, from 15 nm to 2 Am thick, using high vacuum depositions, casting, and spin coating techniques. AFM investigation shows well formed needles, univocally oriented with respect to the substrate. The HOMO/LUMO levels, matching the electrode working function, the film orientation, and the close packing, suggest its promising use as an active layer in FET devices.
机译:已经合成了一种新分子,该分子被设计为场效应晶体管(FET)器件中的潜在活性材料,并由对氰基亚苯基和亚噻吩基残基组成,并从电化学,光物理和结构的角度对其进行了表征。从粉末XRD数据得出的晶体结构与由相似残基组成的分子晶体相比,具有更高的紧密堆积。通过使用高真空沉积,流延和旋涂技术,从15 nm到2 Am厚的固体膜生长,证明了晶体的适用性。原子力显微镜调查显示,针头相对于基材具有唯一取向的结构良好的针头。与电极工作功能,薄膜取向和紧密堆积相匹配的HOMO / LUMO含量表明其有望用作FET器件中的有源层。

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