High-efficiency heterojunction solar cell and photovoltaic module

The utility model discloses a high-efficiency heterojunction solar cell and a photovoltaic assembly, which belong to the technical field of heterojunction cells, and comprise a silicon substrate, and intrinsic amorphous silicon layers, doping layers, transparent conductive film layers and metal electrodes are arranged on the front and back surfaces of the silicon substrate; wherein at least one transparent conductive thin film layer comprises a first thin film area and a second thin film area, the carrier concentration of the first thin film area is smaller than that of the second thin film area, the transmittance of the first thin film area is larger than that of the second thin film area, and the work function of the first thin film area is different from that of the second thin film area. The first film area and the second film area are arranged on the transparent conductive film, the carrier concentration, the transmittance and the work function of the second film area and the first film area are controll