Method for manufacturing diamond/CdTe thin-film solar cell

The invention discloses a method for manufacturing a diamond/CdTe thin-film solar cell. The cell has a silicon substrate/p-type diamond/n-type CdTe three-layer structure. The method comprises the following steps of: performing cleaning pretreatment and surface modification on the silicon substrate/p-type diamond thin-film, depositing an n-type CdTe thin-film on the p-type diamond thin-film to form a heterojunction, performing CdCl2 annealing treatment after CdTe thin-film deposition is finished, etching a silicon substrate in a window layer light absorption area, and performing metal contact deposition to form a thin-film solar cell device. According to the method, the p-type diamond/n-type CdTe thin-film solar cell can be manufactured, the p-type diamond serves as a window layer material, and the n-type CdTe thin-film serves as an absorption layer material, so that the heterojunction solar cell is manufactured, the availability of a wide bandgap p-type semiconductor material in the field of solar cells is realized.