SOLAR CELL AND PREPARATION METHOD FOR SOLAR CELL

• Main Authors: CHEN, Bin, JIANG, Xiulin, DUAN, Guangliang
• Format: Patent
• Language: Chinese; English; French
• Published: 01.06.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The present application discloses a solar cell and a preparation method for the solar cell. The preparation method for the solar cell comprises: sequentially forming a tunneling silicon oxide layer, an N-type doped polysilicon layer, and a back passivated anti-reflection film on the back surface of an N-type silicon substrate; grooving in the back passivated anti-reflection film, and forming a nickel metal layer in a grooved area; and printing a back fine gate electrode on the nickel metal layer, and printing a back main gate electrode on the back passivated anti-reflection film, wherein the back fine gate electrode is electrically connected to the back main gate electrode. La présente demande divulgue une cellule solaire et un procédé de préparation de la cellule solaire. Le procédé de préparation de la cellule solaire consiste à : former séquentiellement une couche d'oxyde de silicium à effet tunnel, une couche de polysilicium dopée de type N, et un film antireflet à passivation arrière sur la surface arriè