LASCAMM CR-INSTM, CNR-NANOTEC SS di Rende, Dipartimento di Fisica, Università Della Calabria, 87036 Rende, Italy.
Int J Mol Sci. 2021 Jan 16;22(2):877. doi: 10.3390/ijms22020877.
Discotic (disk-shaped) molecules or molecular aggregates may form, within a certain temperature range, partially ordered phases, known as discotic liquid crystals, which have been extensively studied in the recent past. On the one hand, this interest was prompted by the fact that they represent models for testing energy and charge transport theories in organic materials. However, their long-range self-assembling properties, potential low cost, ease of processability with a variety of solvents and the relative ease of tailoring their properties via chemical synthesis, drove the attention of researchers also towards the exploitation of their semiconducting properties in organic electronic devices. This review covers recent research on the charge transport properties of discotic mesophases, starting with an introduction to their phase structure, followed by an overview of the models used to describe charge mobility in organic substances in general and in these systems in particular, and by the description of the techniques most commonly used to measure their charge mobility. The reader already familiar or not interested in such details can easily skip these sections and refer to the core section of this work, focusing on the most recent and significant results regarding charge mobility in discotic liquid crystals.
盘状（盘形）分子或分子聚集体可能在一定温度范围内形成部分有序相，称为盘状液晶，在最近的研究中得到了广泛的研究。一方面，这是因为它们代表了在有机材料中测试能量和电荷输运理论的模型。然而，它们的长程自组装特性、潜在的低成本、易于用各种溶剂加工以及通过化学合成相对容易地调整其性质的能力，也引起了研究人员对在有机电子器件中利用其半导体性质的关注。本综述涵盖了盘状中间相电荷输运性质的最新研究，首先介绍其相结构，然后概述用于描述一般有机物质和特别是这些系统中电荷迁移率的模型，并描述最常用的技术来测量它们的电荷迁移率。已经熟悉或不感兴趣的读者可以轻松跳过这些部分，并参考本工作的核心部分，重点介绍关于盘状液晶中电荷迁移率的最新和最重要的结果。
