| 摘要 |
Disclosed in the present invention is a solar cell local-area doping method. The method comprises the steps: (a) molecular films with hydrophilic groups and/or hydrophobic groups are formed on the surface of a substrate; (b) doping sources are provided on the surface of the substrate said in the step (a), and the doping sources are distributed on the patterns formed by the molecular films; and (c) the thermal diffusion is conducted to the obtained substrate in the step (b), and therefore the substrate of the local-area doping solar cell is formed. According to the method in the present invention, the local-area doping structures with different patterns and sizes can be obtained, and the method is particularly suitable for building local-area emitter junctions and high-low surface fields of the solar cell. |
