CIGS thin-film solar cell module and preparation method thereof

• Main Authors: HE QIQI, ZHU DENGHUA, ZHOU ANCONG, ZHANG WEI, ZHANG KUANXIANG
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention belongs to the technical field of solar cells, and particularly discloses a CIGS thin-film solar cell module and a preparation method thereof, and the preparation method comprises the steps: scribing a first line on a back electrode to separate the back electrode; etching a second line on the PN junction layer to separate the PN junction layer, and forming a connecting channel of the back electrode layer, the front electrode layer and the conductive grid line; and a third line is scribed on the front electrode and the conductive grid line to separate the front electrode layer and the conductive grid line. The preparation method is simple, the technological process is easy to control, the production yield is improved, the production cost is reduced, large-scale production is particularly facilitated, the film thickness of the front electrode layer of the prepared CIGS thin-film solar cell module is remarkably reduced, the conductive grid lines are used as conductive drainage, the conductivity of