| 摘要 |
<p>The present invention relates to a heterojunction solar cell and a method for manufacturing same. The heterojunction solar cell comprises: a semiconductor wafer having a predetermined polarity; a first semiconductor layer formed on one surface of the semiconductor wafer; a second semiconductor layer formed on the other surface of the semiconductor wafer and having a polarity opposite to that of the first semiconductor layer; a first electrode formed on the first semiconductor layer; a second electrode formed on the second semiconductor layer; and at least a first interface layer or a second interface layer, wherein the first interface layer includes ZnO formed between the first semiconductor layer and the first electrode, and the second interface layer includes ZnO formed between the second semiconductor layer and the second electrode. In the heterojunction solar cell according to the present invention, an interface layer is formed between the first semiconductor layer and the first electrode and/or between the second semiconductor layer and the second electrode. Therefore, electrode material constituting an electrode is prevented from permeating into the semiconductor layer. Also, carriers generated in a semiconductor wafer can be collected, and the collected carriers can be easily moved to an electrode, thereby improving the efficiency of the solar cell.</p> |
