Patent ID: 11848397

Abstract:
The present application relates to the technical field of solar cells, and in particular, to a method for preparing a solar cell, the solar cell, and a photovoltaic module. The method for preparing the solar cell includes: providing a substrate; forming a doped amorphous silicon layer on the first side of the substrate; performing laser treatment N times on the doped amorphous silicon layer to form N doped polysilicon layers ranging from a first doped polysilicon layer to a Nth doped polysilicon layer stacked in a direction away from the substrate, where N>1, a power, a wavelength and a pulse irradiation number of a nth laser treatment are respectively smaller than a power, a wavelength and a pulse irradiation number of a (n−1)th laser treatment, where n≤N, and the first doped polysilicon layer is disposed closer to the substrate than the Nth doped polysilicon layer. The embodiments of the present application are conducive to simplify the process of forming the solar cell.