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Solar cell comprising multicrystalline silicon and method of texturing the surface of P-type multicrystalline silicon
Solar cell comprising multicrystalline silicon and method of texturing the surface of P-type multicrystalline silicon
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机译:包含多晶硅的太阳能电池和使p型多晶硅的表面纹理化的方法
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摘要
A solar cell of polycrystalline silicon (alloy) has a light-receiving surface containing pit-like holes of 0.1-10 mu m depth and 0.1-10 mu m diameter with a depth to diameter ratio of greater than 1, the surface area of the holes occupying more than half the surface area of the silicon. Also claimed is a process for texturing a surface of p-type polycrystalline silicon (alloy) by partial chemical oxidation of the surface with a fluorine ion-containing oxidising solution to form a porous surface layer which is then dissolved to obtain the textured surface.
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