太阳电池组件上纳米多孔SiO_2减反射膜的制备和增透性能研究

Study on the process and properties of nano-porous SiO_2 anti-reflection film applied in the solar module

采用溶胶-凝胶法制备纳米多孔SiO2减反射薄膜,通过对不同制备工艺的探索(如陈化时间、提拉速度)以及所制备的纳米SiO2薄膜的微观结构的研究,探究SiO2溶胶特性对薄膜结构的影响以及薄膜纳米结构对其光透过率的影响,寻找最优化的制备工艺制备纳米多孔SiO2减反射薄膜,进一步提高太阳电池组件上超白玻璃的透过率问题。结果表明以氨水为催化剂、陈化时间为4天、提拉速度为1.25mm/s的工艺制备减反射薄膜效果最好。在超白玻璃盖板上镀减反射膜后,透过率(400～1100nm)由90%提高到96%,对太阳电池组件应用可进一步增加6%左右的可见光利用。

Sol-gel method was introduced to prepare nano-porous SiO2 anti-reflection film coated onto cover glass in silicon solar module. The effects of the aging time,pulling rate and the nanostructure on the transmittance of SiO2 film have been studied. The results show that the best performance of SiO2 anti-reflection film was obtained by the conditions including ammonia catalyst,aging time of 4 days and pulling rate of 1.25mm/s. The transmittance of the super-white glass was increased from 90 % to 96% after coated with this anti-reflection film in the wavelength range from 400 to 1100nm. As a result, the utilization of light for solar module was further increased.