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Molecular Ordering of High-Performance Soluble Molecular Semiconductors and Re-evaluation of Their Field-Effect Transistor Characteristics

机译:高性能可溶性分子半导体的分子有序性及其场效应晶体管特性的重新评估

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摘要

Although it is widely known that conventional organic semiconductors for solution-processed organic field-effect transistors (OFETs) are conjugated polymers represented by poly(3-alkylthiophenes), highly soluble molecular semiconductors are currently also attracting interest. Among these soluble molecular semiconductors 6,13-bis(triisopropyl-silylethynyl)pentacene (TIPS- pentacene, Fig. 1) developed by Anthony et al., the bulky triisopropylsilyl groups of which are located at the peri positions, that is, the short-molecular-axis direction, of the pentacene core, is a prime example, and FET devices fabricated by using solution-cast films of this material have shown field-effect mobility (μ_(FET)) values as high as 1.8 cm~2 V~(-1) s~(-1).
机译:尽管众所周知,用于溶液处理的有机场效应晶体管(OFET)的常规有机半导体是以聚(3-烷基噻吩)为代表的共轭聚合物,但是目前,高溶解度的分子半导体也引起了人们的兴趣。在这些可溶性分子半导体中,由Anthony等人开发的6,13-​​双(三异丙基-甲硅烷基乙炔基)并五苯(TIPS-并五苯,图1),其庞大的三异丙基甲硅烷基位于周围,即短并五苯核的分子轴方向是一个很好的例子,使用这种材料的溶液流延膜制造的FET器件的场效应迁移率(μ_(FET))值高达1.8 cm〜2 V 〜(-1)s〜(-1)。

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