Patent ID: 11901471
Assignee: PANASONIC HOLDINGS CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A solar cell, comprising:
a first amorphous silicon layer of a first conductivity type provided on a first main surface of a crystalline silicon substrate;
an amorphous silicon oxide layer provided on a first main surface of the first amorphous silicon layer; and
a microcrystalline silicon layer of the first conductivity type provided on a first main surface of the amorphous silicon oxide layer, wherein
a concentration of oxygen atoms in the first amorphous silicon layer, the amorphous silicon oxide layer, and the microcrystalline silicon layer has a maximum value in the amorphous silicon oxide layer with a thickness direction, and
the solar cell further comprises a first passivation layer constituted with an amorphous silicon material between the first main surface of the crystalline silicon substrate and a second main surface of the first amorphous silicon layer.