Patent ID: 9166082
Filing Date: 2015-10-20
Classification: H01L,Y02E

Abstract:
1. A solar cell comprising: a substrate of a first conductive type; an emitter region of a second conductive type opposite the first conductive type and which forms a p-n junction along with the substrate; an anti-reflection layer positioned on the emitter region; a front electrode part electrically connected to the emitter region; and a back electrode part electrically connected to the substrate, wherein the substrate includes a first area formed of single crystal silicon and a second area formed of polycrystalline silicon, wherein a thickness of the anti-reflection layer positioned on the first area is less than a thickness of the anti-reflection layer positioned on the second area, wherein an incident surface of the substrate in the first area includes a plurality of uneven portions each having a pyramid shape, and an incident surface of the substrate in the second area does not include an uneven portion having a pyramid shape, and wherein the emitter region is entirely formed on the incident surface of the substrate.