SOLAR CELL AND MANUFACTURING METHOD THEREOF

摘要

A solar cell and a manufacturing method thereof. The solar cell comprises a semiconductor substrate and a first anti-reflection layer. The semiconductor substrate is provided with a first-type semiconductor surface and a second-type semiconductor surface, said surfaces opposing each other. The first anti-reflection layer comprises a plurality of refraction bumps and a cover layer. The refraction bumps are set on the second-type semiconductor surface, where each refraction bump is provided with a first refraction part and a second refraction part. The second refraction part conformally covers the first refraction part, where the refraction index of the first refraction part is greater than that of the second refraction part. The cover layer covers the second-type semiconductor surface and the refraction bumps, where the refraction index of the cover layer is less than that of the second refraction part.