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发明授权
CN101969075B 一种晶体硅太阳能电池双层减反射膜及其制备方法 失效 - 权利终止

一种晶体硅太阳能电池双层减反射膜及其制备方法
摘要：
本发明公开了一种晶体硅太阳能电池双层减反射膜，该减反射膜是由两层膜构成，第一层膜设在晶体硅太阳能电池的硅片衬底的表面，第二层膜设在第一层膜的表面，第一层膜为二氧化硅薄膜，其厚度为10～20nm，折射率为1.45～1.47；第二层膜为二氧化钛薄膜，其厚度为50～60nm，折射率为2.15～2.45。本发明的减反射膜可以明显降低电池表面对光的反射，提高晶体硅太阳能电池的光电转化效率。
摘要（英）：

The invention discloses a double-layer anti-reflective film for a crystalline silicon solar battery, which is formed by two layers of films, wherein the first layer of film is arranged on the surface of a silicon wafer substrate of the crystalline silicon solar battery, and the second layer of film is arranged on the surface of the first layer of film; the first layer of film is a silicon dioxidefilm, the thickness of the silicon dioxide film is 10-20nm, and the refractive index of the silicon dioxide film is 1.45-1.47; and the second layer of film is a titanium dioxide film, the thickness of the titanium dioxide film is 50-60nm, and the refractive index of the titanium dioxide film is 2.15-2.45. The anti-reflective film of the invention can obviously reduce the reflection of the surfaceof the battery to light, and can improve the photoelectric conversion efficiency of the crystalline silicon solar battery.

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