▎ 摘　　要

NOVELTY - The utility model claims a graphene silicon-based solar cell has an annular insulating layer structure, comprising a back electrode, a silicon chip is set on the back electrode, silicon chip is provided with a silicon dioxide layer. the silicon dioxide layer is an annular structure with a through hole, silicon dioxide layer thickness of the monocrystal silicon sheet is 0.2 to 2 microns, the surface of the silicon dioxide layer and a silicon dioxide layer through hole exposed mono-crystalline silicon sheet is set on the surface of the graphene film, the graphene film is set on the surface of front electrode. Compared with annular insulating layer structure of graphene efficiency with traditional silicon-based solar battery structure is obviously improved.