화학공학소재연구정보센터
Chinese Journal of Chemical Engineering, Vol.11, No.6, 751-754, 2003
Three-dimensional ordered silica colloidal film self-assembly deposited on a vertical substrate
A method for preparation of particle crystal film constructed from monodisperse silica colloidal particles in diameter of about 300 urn is reported. The films were prepared from an ethanol suspension by vertical deposition that relies on capillary forces to assemble colloidal crystal particles on a vertical substrate. The 3D ordered films were characterized by transmission spectra and scanning electric microscope (SEM). The effect of evaporation temperature, particle concentration and sintered temperature on the quality of colloidal particle crystal film was investigated.