Patent ID: 9627557
Date: 2017-04-18
CPC Classifications: H01L,Y02E

Claim:
1. A solar cell comprising: a photoelectric conversion unit having a first main surface including an n-type surface and a p-type surface, and a second main surface, an n-side electrode connected electrically to the n-type surface, and a p-side electrode connected electrically to the p-type surface, wherein the photoelectric conversion unit comprises: wherein the amorphous semiconductor layer includes a thick portion positioned between the crystalline type semiconductor substrate and the insulating layer and covered with the insulating layer and a thinner portion that is exposed from the insulating layer, wherein the thinner portion of the amorphous semiconductor layer does not overlap with the insulating layer when seen in a direction orthogonal to the first main surface of the crystalline type semiconductor substrate, wherein an interface surface between the amorphous semiconductor layer and the crystalline type semiconductor substrate is flat without having a textured structure, and wherein one of either the n-side electrode or the p-side electrode contacts on at least the thinner portion of the amorphous semiconductor layer.