The Study on the Preparation and Properties of Sol-Gel Derived Antireflective Coating for Solar Glass

The single side SiO2 antireflective film was prepared by roller coating method on solar glass, and the SiO2 sol was prepared using sol-gel method via two steps reactions. The thickness of the film can be adjusted by controlling the roller speed, and the variation of the film thickness can alter the transmittance peak position. The transmittance of single-sided coated glass increased 2.71% compared to un-coated solar glass. The relative humidity of coating environment affects the film-coating process. The light transmittance of the antireflective film coated glass reached the best value when the temperature and relative humidity were 22°C and 40%, respectively.