Sol-gel synthesis of novel photosensitive material with advanced holographic properties

Abstract

Silver chloride nanoparticle-doped glycidoxypropylsilsesquioxanetitania hybrid films are prepared by the solgel method and their hologram-related properties are investigated. The optical absorption of the film embedded with AgCl nanoparticles at a blue laser wavelength is stronger than that of the film embedded with AgBr nanoparticles. The strong absorption of the filmwith AgCl nanoparticles leads to a considerable increase in absorption in the visible wavelength region upon blue laser irradiation. This phenomenon is generally implicated in good hologram formation ability of the film. A simultaneous addition of AgNO3 and CCl3COOH from separate vessels to the sol realizes homogeneous dispersion of AgCl in the hybrid films. The diffraction efficiency of the film exposed to an interferential blue laser shows a good hologram formation ability of the film and a high reliability for readout-angle deviation. © 2011 The Ceramic Society of Japan.