Nanoporous SiO₂ films prepared by surfactant templating method - A novel antireflective coating technology

A sol-gel derived antireflection (AR) coating by surfactant templating method is presented. The spin coating process was used to deposit SiO ₂ thin films on glass. The pore size and the pore volume of the film were controlled by the size and the volume of the template (i.e. Tween 80). It was found from this research that the transmittance was increased from 91.7% to above 99.0% either by a single-layer or by a double-layer porous SiO₂ antireflection coating, on both sides of the glass pane at a specific wavelength.