Abstract
Infrared induced alignment change of columnar liquid crystal domains and anisotropic electric conduction were investigated for a well-known discotic liquid crystal, 2,3,6,7,10,11-hexahexyloxytriphenylene. A uniformly aligned alignment change of domains was observed when an infrared laser corresponding to the wavelength of the aromatic C-O-C stretching vibration band was irradiated. Anisotropic photoconduction was observed for homeotropic and unidirectional planar aligned domains between in-plane two gold electrodes. Photoconductivity for unidirectional planer aligned domain was increased by 4 times compared with that for homeotropic one during dark-current was not drastically changed between two conditions.
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