| 主权项 |
1. A back-contact solar cell set comprising:
a semiconductor substrate; and an electrode set located on a back surface of the semiconductor substrate, wherein the back surface comprises a first cell region, a second cell region and a first outer-isolation region which separates the first cell region and the second cell region, the first cell region comprises a first emitter region, a first back surface field region and a first inner-isolation region which separates the first emitter region and the first back surface field region, the second cell region comprises a second emitter region, a second back surface field region and a second inner-isolation region which separates the second emitter region and the second back surface field region, the electrode set comprises a first connecting electrode, a first emitter electrode directly connected to the first emitter region, a first back field electrode directly connected to the first back surface field region, a second emitter electrode directly connected to the second emitter region, and a second back field electrode directly connected to the second back surface field region, and the first emitter electrode electrically connects to the second back field electrode via the first connecting electrode, and the first connecting electrode covers on a first basin region of the first outer-isolation region, wherein the first basin region is lower than a first highland region of the first outer-isolation region in a vertical direction of the semiconductor substrate. |
