Progress in Discotic Liquid Crystalline Materials
Progress in Discotic Liquid Crystalline Materials
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作者：
C. Shu
非对称液晶分子容易形成柱状超分子结构，由于液晶态的分子迁移性，这些柱状组装体可以在一定程度上自我修复结构缺陷，因此，非对称液晶态的共轭芳香族分子可能具有特殊的载流子输运性质，是潜在的光电器件活性材料。本文综述了非对称液晶态的共轭芳香族分子在光电子器件中的应用。本文综述了苯、苯并菲、六苯并蔻、二萘嵌苯和酞菁衍生物等一类非均相液晶材料的结构与液晶性能的关系，以及这些材料在有机电致发光器件、有机场效应晶体管（OFET）和光伏电池。此外，一些dispensLC材料的动力学研究进行了简要的讨论。
Discotic liquid crystal (LC) molecules readily form columnar supramolecular structures.Because of molecular mobility in the LC state these columnar assemblies can self-heal structural defects to a certain extent.Therefore,conjugated aromatic molecules of the discotic LC state may exhibit exceptional charge carrier transport properties,and thus are potential active materials for use in optoelectronic devices.In this review,a number of discotic LC materials including benzene,triphenylene,hexabenzocoronene,perylene,and phthalocyanine derivatives are reviewed.The emphases are on the correlation between chemical structure and LC properties and some recent developments in the application of these materials in optoelectronic devices such as organic light-emitting diodes (OLED),organic field-effect transistors (OFET),and photovoltaic cells.In addition,studies related to the dynamics of some discotic LC materials are briefly discussed.