SOLAR CELL

摘要

A solar cell includes: a crystalline silicon substrate of one conductivity type including a first principal surface, and a second principal surface provided on an opposite side from the first principal surface; a first amorphous silicon layer of the other conductivity type provided on the first principal surface side; a second amorphous silicon layer of the one conductivity type provided on the second principal surface side; a contact layer in contact with the second amorphous silicon layer; a magnesium-doped zinc oxide layer in contact with the contact layer; a first electrode layer provided on the first amorphous silicon layer; and a second electrode layer provided on the magnesium-doped zinc oxide layer. A lattice constant of the contact layer is within a range of plus or minus 30% relative to a lattice constant of the magnesium-doped zinc oxide layer.

主权项

1. A solar cell comprising:
a crystalline silicon substrate including a first principal surface, and a second principal surface provided on an opposite side from the first principal surface; a first amorphous silicon layer provided on the first principal surface side; a second amorphous silicon layer provided on the second principal surface side; a contact layer in contact with the second amorphous silicon layer; a magnesium-doped zinc oxide layer in contact with the contact layer; a first electrode layer provided on the first amorphous silicon layer; and a second electrode layer provided on the magnesium-doped zinc oxide layer, wherein a lattice constant of the contact layer is within a range of plus or minus 30% relative to a lattice constant of the magnesium-doped zinc oxide layer.