Gallium oxide back-passivated solar cell and preparation method therefor

Abstract

The present application provides a gallium oxide back-passivated solar cell and a preparation method therefor. The solar cell comprises a P-type silicon substrate. A front coating and a back coating are respectively provided on two opposite side surfaces of the P-type silicon substrate. The front coating comprises an emitter, a front silicon oxide layer, and a front silicon nitride layer which are sequentially stacked from the surface of the P-type silicon substrate to the outside. The back coating comprises a silicon oxide passivation layer, a gallium oxide passivation layer, and a back passivation layer which are sequentially stacked from the surface of the P-type silicon substrate to the outside.

Dependencies are inferred from the claim text.