Organic semiconductors have attracted a lot of attention since the discovery of highly doped conductive polymers, due to the potential application in field-effect transistors (OFETs), light-emitting diodes (OLEDs) and photovoltaic cells (OPVs). Single crystals of organic semiconductors are particularly intriguing because they are free of grain boundaries and have long-range periodic order as well as minimal traps and defects. Hence, organic semiconductor crystals provide a powerful tool for revealing the intrinsic properties, examining the structure–property relationships, demonstrating the important factors for high performance devices and uncovering fundamental physics in organic semiconductors. This review provides a comprehensive overview of the molecular packing, morphology and charge transport features of organic semiconductor crystals, the control of crystallization for achieving high quality crystals and the device physics in the three main applications. We hope that this comprehensive summary can give a clear picture of the state-of-art status and guide future work in this area.

中文翻译：

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有机半导体晶体

自从发现高掺杂的导电聚合物以来，由于在场效应晶体管（OFET），发光二极管（OLED）和光伏电池（OPV）中的潜在应用，有机半导体引起了广泛的关注。有机半导体单晶尤其令人着迷，因为它们没有晶界，具有长周期周期性，并且陷阱和缺陷最少。因此，有机半导体晶体提供了一个强大的工具，可以揭示其固有特性，检查结构与性质之间的关系，证明高性能器件的重要因素以及揭示有机半导体的基本物理原理。这篇综述全面概述了有机半导体晶体的分子堆积，形态和电荷传输特征，在三个主要应用中，实现高品质晶体的晶化控制和器件物理。我们希望，这份全面的摘要可以清楚地描述最新状态，并指导该领域的未来工作。