| 摘要 |
A solar cell includes a photoelectric conversion unit, where a first conductive-type layer and a second conductive-type layer are arranged alternately on a main surface of the semiconductor substrate, and an electrode layer provided on the first conductive-type layer and the second conductive-type layer. The photoelectric conversion unit has a plurality of sub-cells. The electrode layer has a first electrode, provided on the first conductive-type layer included in a sub-cell at one end of the sub-cells, a second electrode, provided on the second conductive-type layer included in a sub-cell at the other end of the sub-cells, and a sub-electrode provided across two adjacent sub-cells. A sub-cell, where the first electrode is provided, has a larger area of the main surface than that of a sub-cell where the second electrode is provided. |
| 主权项 |
1. A solar cell comprising:
a photoelectric conversion unit including:
a semiconductor substrate having one conductivity type;a first conductive-type layer provided on a main surface of the semiconductor substrate, the first conductive-type layer having the same conductivity type as that of the semiconductor substrate; anda second conductive-type layer provided on the main surface, the second conductive-type layer having a conductivity type different from that of the semiconductor substrate,wherein the first conductive-type layer and the second conductive-type layer are arranged alternately in a first direction on the main surface, and an electrode layer provided on the first conductive-type layer and the second conductive-type layer, wherein the photoelectric conversion unit has a plurality of sub-cells, arranged in a second direction that intersects with the first direction, and a separation region provided on a boundary between adjacent sub-cells,
the electrode layer having:
a first electrode provided on the first conductive-type layer included in a sub-cell at one end of the plurality of sub-cells;a second electrode provided on the second conductive-type layer included in a sub-cell at the other end of the plurality of sub-cells; anda sub-electrode provided across two adjacent sub-cells, the sub-electrode connecting the first conductive-type layer included in one of the two adjacent sub-cells and the second conductive-type layer included in the other thereof, wherein a sub-cell, where the first electrode is provided, has a larger area of the main surface than that of a sub-cell where the second electrode is provided. |
