METHOD FOR MANUFACTURING SILICON FILM AND METHOD FOR MANUFACTURING SOLAR BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a silicon film, by which a thick silicon film can be obtained while suppressing the degree of roughness, and to provide a method for manufacturing a polycrystalline silicon solar battery capable of realizing both of a large electric current and high FF at a low cost.

SOLUTION: The solar battery is manufactured by dipping a polycrystalline silicon substrate into a solution 24 containing silicon and forming a pn-junction in a silicon film by growing the silicon film on a substrate 28 while decreasing the temperature lowering rate of the solution with time during dipping of the substrate in the solution.

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