PD01 光応答性液晶エマルションにおけるマイクロドロップレットの光誘起動的挙動(フォトニクス・光デバイス)

概要

論文の詳細を見る
We investigated light-induced motion of glycerol micro-droplets dispersed in nematic liquid crystals (LCs) doped with azobenzene derivatives. On irradiation of 365-nm light, the trans-cis photoisomerization drives a directional motion of the droplets towards the cis-rich area and assembled close-packed two-dimensional hexagonal colloidal structures. This behavior is mainly attributable to reduction of the droplet-LC interfacial tension by adsorption of cis isomers with enhanced surface activity. On the other hand, irradiation of 435-nm light induced dispersion of the droplets from the irradiated area. It can be speculated that changes of liquid crystal properties as well as the changes of interfacial tension will be responsible for the dispersion process.
日本液晶学会の論文
2003-10-14