| 摘要 |
A solar cell according to an embodiment of the present invention may comprise: a semiconductor substrate including a silicon crystal; a first immobilization layer, a second immobilization layer, and a first semiconductor layer which are stacked in order on a first surface of the semiconductor substrate; a third immobilization layer, a fourth immobilization layer, and a second semiconductor layer which are stacked in order on a first electrode layer, a first electrode pattern, and a second surface of the semiconductor substrate; and a second electrode layer and a second electrode pattern. The first to fourth immobilization layer may contain intrinsic amorphous silicon. The second immobilization layer has a higher crystallinity than the first immobilization layer, and the fourth immobilization layer has a higher crystallinity than the third immobilization layer. The solar cell can improve the efficiency and lifetime. |
