| 摘要 |
Methods of fabricating solar cells using improved front contact heterojunction processes, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having first and second light-receiving surfaces. A tunnel dielectric layer is disposed on the first and second light-receiving surfaces. An N-type polycrystalline silicon layer is disposed on the portion of the tunnel dielectric layer disposed on the first light-receiving surface. A P-type polycrystalline silicon layer is disposed on the portion of the tunnel dielectric layer disposed on the second light-receiving surface. A transparent conductive oxide layer is disposed on the N-type polycrystalline silicon layer and on the P-type polycrystalline silicon layer. A first set of conductive contacts is disposed on the portion of the transparent conductive oxide layer disposed on the N-type polycrystalline silicon layer. A second set of conductive contacts is disposed on the portion of the transparent conductive oxide layer disposed on the P-type polycrystalline silicon layer. |
