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US 2011/0214724 A1Published application
Solar cell
AssigneeSamsung Electronics Co., Ltd.
InventorKyoung-Jin SEO
Life of this patent
Estimating the term…
Abstract
A solar cell includes a semiconductor substrate including a first conductivity type region; a semiconductor layer disposed on a first surface of the semiconductor substrate and including second conductivity type impurities; a first mask film disposed on a second surface of the semiconductor substrate; a second mask film disposed on the first mask film; and an electrode disposed on the second mask film.
Claims19
A solar cell comprising:
- a semiconductor substrate which includes a first conductivity type region;
- a semiconductor layer disposed on a first surface of the semiconductor substrate, wherein the semiconductor layer includes impurities having a second conductivity type different from the first conductivity type;
- a first mask film disposed on a second surface of the semiconductor substrate;
- a second mask film disposed on the first mask film;
- and
- an electrode disposed on the second mask film.
3 more elements
A solar cell comprising:
- a semiconductor substrate which includes a first conductivity type region;
- a semiconductor layer disposed on a first surface of the semiconductor substrate and including a second conductivity type region wherein the second conductivity type region has a different conductivity type than the first conductivity type region;
- a mask film disposed on a second surface of the semiconductor substrate and comprising silicon nitride;
- and
- an electrode disposed on the mask film,
- wherein the mask film has an upper region which contacts the semiconductor substrate and a lower region which contacts the electrode, wherein the lower region of the mask film has a greater silicon content than the upper region of the mask film.
3 more elements
A solar cell comprising:
- a semiconductor substrate including a first conductivity type region;
- a semiconductor layer disposed on a first surface of the semiconductor substrate and including a second conductivity type region;
- a mask film disposed on a second surface of the semiconductor substrate and containing silicon nitride;
- and
- an electrode disposed on the mask film,
- wherein the silicon content of the mask film increases with distance from an interface between the mask film and the semiconductor substrate to an interface between the mask film and the electrode.
3 more elements
A solar cell comprising:
- a semiconductor substrate including a first conductivity type region;
- a semiconductor layer disposed on a first surface of the semiconductor substrate and including a second conductivity type region;
- a mask film disposed on a second surface of the semiconductor substrate, wherein the mask film has a refractive index equal to or greater than about 2.3;
- and
- an electrode disposed on the mask film.
2 more elements
Dependencies are inferred from the claim text.