SOLAR CELL

摘要

A high voltage output solar cell which is small in size and high in power generation efficiency is provided. The solar cell is provided with a p-type or n-type monocrystalline semiconductor substrate (1) forming a power generation layer, a plurality of hole collecting layers (2), electron collecting layers (3), and grooves (7) provided inside of the semiconductor substrate (1) contiguous to a back surface which faces a light receiving surface of the semiconductor substrate (1), hole collecting layers (2) and electron collecting layers (3) being provided between adjoining grooves (7) and hole collecting layers (2) and electron collecting layers (3) being provided sandwiching grooves (7), and interconnect layers (8) which connect hole collecting layers (2) and electron collecting layers (3) sandwiching grooves (7), the grooves (7) being formed from the back surface side toward the inside of semiconductor substrate (1).

主权项

1. A solar cell comprising:
a p-type or n-type monocrystalline semiconductor substrate which forms a power generation layer, a plurality of hole collecting layers, electron collecting layers, and grooves which are provided inside of said semiconductor substrate contiguous to a back surface which faces a light receiving surface of said semiconductor substrate, said hole collecting layers and said electron collecting layers being provided between adjoining grooves and said hole collecting layers and said electron collecting layers being provided sandwiching said grooves, and interconnect layers which connect said hole collecting layers and said electron collecting layers sandwiching said grooves, said grooves being formed from said back surface side toward the inside of said semiconductor substrate.