Patent ID: 9680037
Date: 2017-06-13
CPC Classifications: H01L,Y02E

Claim:
1. A solar cell comprising: a photoelectric conversion section having a first main surface and a second main surface; a first electrode provided on the first main surface; and a second electrode provided on the second main surface, wherein the first electrode is a collecting electrode, the collecting electrode includes a continuous first electroconductive layer and a continuous second electroconductive layer in this order away from the photoelectric conversion section, and further includes an insulating layer covering the first electroconductive layer and sandwiched between the first electroconductive layer and the second electroconductive layer, the insulating layer having a plurality of opening sections formed between the first electroconductive layer and second electroconductive layer; the first electroconductive layer contains a low-melting-point material, and a thermal-fluidization onset temperature (T a plurality of portions of the second electroconductive layer extend through the plurality of opening sections of the insulating layer to make direct contact with the first electroconductive layer, wherein segments of the insulating layer are disposed between adjacent portions among the plurality of portions of the second electroconductive layer; and a surface roughness (Ra