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US 5,401,336 AGranted
Photovoltaic device
AssigneeSanyo Electric Co., Ltd.
InventorsShigeru Noguchi, Hiroshi Iwata, Keiichi Sano
Life of this patent
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Abstract
A photovoltaic device includes an i-type amorphous silicon thin film and a p-type amorphous silicon thin film arranged on portions of an n-type crystalline silicon substrate, a collecting electrode arranged on the amorphous silicon thin film, and an insulating layer arranged around the portions where the amorphous silicon thin film is formed. Thus, a pin junction is formed only below the collecting electrode.
Claims13
A photovoltaic device comprising:
- a crystalline semiconductor layer of one conductivity type having a first surface and a second surface;
- an amorphous semiconductor layer of the other conductivity type arranged directly or indirectly on a first region of said first surface of said crystalline semiconductor layer;
- an insulating layer arranged on a second region of said first surface of said crystalline semiconductors layer around said first region;
- a collecting electrode arranged on said amorphous semiconductor layer;
- and a transparent electrode covering said insulating layer and said collecting electrode;
- wherein a semiconductor junction between said crystalline semiconductor layer and said amorphous semiconductor layer is formed below said collecting electrode.
3 more elements
A photovoltaic device comprising:
- a crystalline semiconductor layer of one conductivity type having a surface with at least one groove formed therein;
- an amorphous semiconductor layer of the other conductivity type arranged in contact with said crystalline semiconductor layer in said groove;
- an insulating layer arranged on said surface of said crystalline semiconductor layer around said groove;
- and a collecting electrode formed on said amorphous semiconductor layer;
- wherein a semiconductor junction between said crystalline semiconductor layer and said amorphous semiconductor layer is formed below said collecting electrode.
2 more elements
Dependencies are inferred from the claim text.