SOLAR CELL AND METHOD OF MANUFACTURING THE SAME
First Claim
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1. A solar cell comprising:
- a semiconductor substrate having a light-receiving surface and a back surface disposed at the opposite side from the light-receiving surface;
a n-type semiconductor region and a p-type semiconductor region both formed on the back surface; and
a protection layer formed on the light-receiving surface, the protection layer includes a first surface formed on the semiconductor substrate side and a second surface formed on the opposite side from the first surface, and the second surface has a higher acid-resistance than the first surface.
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Abstract
The invention provides a solar cell of increased manufacturing productivity. An aspect of the invention provides a solar cell that comprises a semiconductor substrate having a light-receiving surface and a back surface disposed at the opposite side from the light-receiving surface; a n-type semiconductor region and a p-type semiconductor region both formed on the back surface; and a protection layer formed on the light-receiving surface, the protection layer includes a first surface formed on the semiconductor substrate side and a second surface formed on the opposite side from the first surface, and the second surface has a higher acid-resistance than the first surface.
36 Citations
15 Claims
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1. A solar cell comprising:
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a semiconductor substrate having a light-receiving surface and a back surface disposed at the opposite side from the light-receiving surface; a n-type semiconductor region and a p-type semiconductor region both formed on the back surface; and a protection layer formed on the light-receiving surface, the protection layer includes a first surface formed on the semiconductor substrate side and a second surface formed on the opposite side from the first surface, and the second surface has a higher acid-resistance than the first surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of manufacturing a solar cell, comprising steps of:
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forming a semiconductor substrate having a light-receiving surface and a back surface disposed at the opposite side from the light-receiving surface; forming a n-type semiconductor region and a p-type semiconductor region on the back surface; and forming a protection layer on the light-receiving surface, the forming the protection layer comprising; forming a first surface formed on the semiconductor substrate side; and forming a second surface formed on the opposite side from the first surface, the second surface has a higher acid-resistance than the first surface. - View Dependent Claims (15)
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Specification