摘要
本文讨论了用溶胶-凝胶法制备Na_2O-B_2O_3-SiO_2系统梯度折射率减反射膜的实验方法。这类玻璃膜具有多孔的微观结构,拥有比基玻璃更小的密度和折射率,膜中微孔结构经过热处理和化学处理后,使薄膜的折射率呈现梯度变化,玻璃涂层在宽的波长范围内起到减反射作用。将它应用于太阳能电池系统中可提高电池效率10%。 文中讨论了膜的厚度影响因素。应用热分折、红外吸收光谱研究了凝胶转化为玻璃的过程,应用开口气孔模型讨论了烧结过程.
Laboratory method and process used to deposit the gradient index antireflective glass films of Na_2O-B_2O_3-SiO_2 system by the sol-gel method are discussed. These glass films are of porous micro-structure and process smaller density and refractive index than the substrates. The refractive index of the film shows gradient variation after being heat-treated and chemically treated. Thus, the glass films have an antireflective effect in a wide wavelength range. The films are used in solar energy system and increase the efficiency of solar energy batteries by ten percent. The effects of the film thickness are also discussed. Thermal analysis and infrared absorption spectrum measurements were made to study the gel-to-glass conversion process. The sintering process is discussed following open-pore model.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1992年第5期436-441,共6页
Journal of The Chinese Ceramic Society
关键词
玻璃
溶胶-凝胶法
折射率
涂层
glass
sol-gel method
gradient refractive-index
antireflective coating
