Photovoltaic element and manufacturing method thereof

Details Photovoltaic element and manufacturing method thereof Photovoltaic element and manufacturing method thereof

1996-10-24

1999-08-10

Chapman, Mark

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

136256, H01L 3100

Patent

active

059353449

ABSTRACT:
A photovoltaic element having improved conversion efficiency and improved light confining property as well as a method of manufacturing the photovoltaic element with superior productivity are provided. The photovoltaic element includes an n type single crystal silicon substrate having first and second main surfaces, an intrinsic amorphous silicon layer formed on the first main surface, a p type amorphous silicon layer formed thereon, a conductive thin film formed thereon, a collecting electrode formed thereon, an intrinsic amorphous silicon layer formed on the second main surface of n type single crystal silicon substrate, an n type amorphous silicon layer formed thereon, a conductive thin film formed thereon and a back electrode formed thereon. At a peripheral portion of a laminated portion including the intrinsic amorphous silicon layer formed on the first main surface of the n type single crystal silicon substrate, the p type amorphous silicon layer and the conductive thin film, a trench deep enough to reach at least the intrinsic amorphous semiconductor layer is formed.

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patent: 5082791 (1992-01-01), Micheels et al.
patent: 5342451 (1994-08-01), Virshup
Taiyo Energy Kogaku, Solar Energy Engineering, by Baifukan 1994.
Taiyo Energy Heno Chosen, "Challenge to Solar Energy" by Seibunsha 1994.

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