2B05 コマンドサーフェスを用いた液晶分子のプレチルト角光制御 : 斜め非偏光照射によるプレチルト角の発現

概要

論文の詳細を見る
Photoinduced dichroism of azobenzene moieties generated by slantwise irradiation of spin-coated films of poly(methacrylate)s possessing various kinds of azobenzene units. The direction of the oriented azobenzene moieties was in parallel with the incident plane of the actinic non-polarized light. This reorientation process can be interpreted in terms of allowed and forbidden photochemical transitions of the azobenzene moieties. For nematic liquid crystal (LC) cells which were fabricated by using those azobenzene-containing polymer films, the slantwise irradiation induced a change of alignment from homeotropic to tilted states. Pretilt angle measurements and polarized microscope observation revealed that the director of LC molecules tilted toward the incident direction of the actinic light. Such photoinduced LC alignment behavior was attributable to the dichroism of the azobenzene-containing polymer films induced by the slantwise irradiation with non-polarized light.
日本液晶学会の論文
1998-10-12