2013 年 121 巻 1409 号 p. 17-20
Composite films with an array of needle like TiO2 particles in urethane resin matrix were fabricated by applying AC bias. The resulting composite films showed angular dependence of transmittance in the visible-NIR wavelength range. The angular dependence of transmittance of the film increased with the increase in the aspect ratio of the TiO2 particles. The composite films using needle like TiO2 particles with an aspect ratio of 19 indicated that the transmittance changed by 25.4% between 0 and 60° at a wavelength of 500 nm.