Patent ID: 11973151
Assignee: TONGWEI SOLAR (ANHUI) CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 9:
10. A method for preparing the HJT cell having high photoelectric conversion efficiency according to claim 1, comprising:
texturing and cleaning a N-type crystalline silicon wafer;
forming an intrinsic amorphous silicon layer or a hydrogenated intrinsic amorphous silicon film layer on both sides of the N-type crystalline silicon wafer by plasma enhanced chemical vapor deposition;
forming a SiO2 layer and a C-doped SiO2 layer by plasma enhanced chemical vapor deposition;
forming a doped N-type amorphous silicon layer and a doped P-type amorphous silicon layer by plasma enhanced chemical vapor deposition;
depositing a TCO conductive layer by deposition or sputtering by reactive ions; and
forming front and back electrodes by screen printing.