Columnar phases formed by the stacking of disclike molecules with an intimate π–π overlap forms a 1D pathway for the anisotropic charge migration along the columns. Columnar phases have great potential in organic electronic devices to be utilized as active semiconducting layers in comparison to organic single crystals or amorphous polymers in terms of processability, ease of handling, and high charge carrier mobility. Intelligent molecular engineering of perylene and its derivatives provided access to tune the physical properties and self-assembly behavior. The columnar phase formed by perylene derivatives has great potential in the fabrication of organic electronic devices. There are several positions on the perylene molecule, which can be functionalized to tune its self-assembly, as well as optoelectronic properties. Thus, many liquid-crystalline molecules stabilizing the columnar phase, which are based on perylene tetraesters, perylene diester imides, and perylene bisimides, have been synthesized over the years. Their longitudinal and laterally extended derivatives, bay-substituted derivatives exhibiting a columnar phase, are reported. In addition, several liquid-crystalline oligomers and polymers based on perylene derivatives were also reported. All such modifications provide an option to tune the energy levels of frontier molecular orbitals with respect to the work function of the electrodes in devices and also the processability of such materials. In this feature article, we attempt to provide an overview of the molecular design developed to tune the applicable properties and self-assembly of perylene derivatives as well as recent developments related to their application in the fabrication of organic solar cells, organic light-emitting diodes, and organic field-effect transistors.

中文翻译：

---

ylene基液晶作为有机电子应用的材料

由盘状分子以紧密的π-π重叠堆积形成的柱状相形成了各向异性电荷沿柱迁移的一维路径。与有机单晶或非晶态聚合物相比，在可加工性，易于处理和高载流子迁移率方面，柱状相在有机电子器件中具有用作活性半导体层的巨大潜力。per及其衍生物的智能分子工程学为调节物理性质和自组装行为提供了途径。由per衍生物形成的柱状相在有机电子器件的制造中具有巨大的潜力。per分子上有几个位置，可对其进行功能化以调节其自组装以及光电性能。因此，这些年来，已经合成了许多基于per四酸酯，per二酯酰亚胺和per双酰亚胺的稳定柱状相的液晶分子。它们的纵向和横向延伸的导数，据报道具有柱状相的海湾取代的衍生物。另外，还报道了几种基于per衍生物的液晶低聚物和聚合物。所有这些修改都提供了一个选项，可以根据设备中电极的功函数以及此类材料的可加工性来调整前沿分子轨道的能级。在这篇专题文章中，我们尝试概述为优化per衍生物的适用性能和自组装而开发的分子设计，以及与它们在有机太阳能电池，有机发光二极管的制造中的应用有关的最新进展。 ，以及有机场效应晶体管。