An Electric-Field-Responsive Discotic Liquid-Crystalline Hexa-peri-Hexabenzocoronene/Oligothiophene Hybrid

摘要

Columnar liquid crystals (COL LCs) formed from discotic mes-ogens are promising materials for a number of applications in organic electronics due to their advantageous properties, such as macroscopic self-assembly, self-healing, and ease of processing. Discotic materials possessing the hexa-peri-hexabenzo-coronene (HBC) core show the highest charge carrier mobility observed to date in COL LCs. Discotic mesogens, including HBC derivatives, are typically composed of more or less rigid planar aromatic cores with flexible chains laterally attached to the cores. Exploration for new COL LC materials enhances the molecular structural diversity achievable, and can allow tuning of physical properties of COL phases at the molecular and supra-molecular levels.