Atomic oxygen protection silver interconnection sheet for space solar cell and preparation method

• Main Authors: LIANG CUNBAO, WANG XIN, TIE JIANRUI, DU YONGCHAO, LI XIAODONG, SUN XIPENG
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention relates to an atomic oxygen protection silver interconnection sheet for a space solar cell and a preparation method, and belongs to the technical field of space power supplies. The atomic oxygen protection silver interconnection sheet for the space solar cell is made of a silver foil material, and is characterized in that the upper surface and the lower surface of the silver foil areplated with palladium layers respectively; the surface of each palladium layer is plated with a gold layer; the thickness of the palladium layer ranges from 0.5[mu]m to 1[mu]m; and the thickness of the gold layer ranges from 1.5[mu]m to 2.5[mu]m. An ion source is used for carrying out pre-cleaning of the silver foil and auxiliary deposition of the metal coating, so that the firmness of the film can be greatly improved, the porosity of the film is reduced, the reliability of the product is improved, and the atomic oxygen protection capability is enhanced. Due to the assistance of the ion source and the use of the isol