Charge carrier transport in liquid crystals
Charge carrier transport in liquid crystals
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DOI：
10.1016/j.tsf.2013.10.051
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发表时间：
2014-03-03
期刊：
影响因子：
2.1
通讯作者：
Iino, Hiroaki
中科院分区：
文献类型：
--
作者：
Hanna, Jun-ichi;Ohno, Akira;Iino, Hiroaki
电荷载流子迁移率范围为 10(-3) 至 0.1 cm(2)/Vs（即介于非晶材料和晶体材料之间）的材料在 20 世纪 90 年代发现液晶中的电子传导之前一直缺失。从那时起，人们对包括盘状液晶和棒状液晶在内的各种液晶材料进行了研究，以阐明它们在液晶中间相中的电荷载流子传输特性。本文在近二十年积累的实验和理论研究的基础上，简要描述了液晶电子传导发现的历史背景、本征和外在传导、载流子输运的独特性质、分子排列对其的影响以及液晶中间相的传导机制，并指出所缺失的材料是液晶。 (C) 2013 Elsevier B.V. 保留所有权利。
The materials exhibiting charge carrier mobility ranging from 10(-3) to 0.1 cm(2)/Vs, i.e., between those of amorphous and crystalline materials, had been missing before the 1990s when the electronic conduction in liquid crystals was discovered. Since then, various liquid crystalline materials including discotic and calamitic liquid crystals have been studied in order to clarify their charge carrier transport properties in liquid crystalline mesophases. In this article, the historical background of the discovery of electronic conduction in liquid crystals, intrinsic and extrinsic conductions, unique properties of the charge carrier transport, the effect of molecular alignment on it, and the conduction mechanism in liquid crystalline mesophases are shortly described on the basis of the experimental and theoretical studies accumulated in these two decades, noting that the missing materials were liquid crystals. (C) 2013 Elsevier B.V. All rights reserved.