MULTI-SOLAR CELL, AND METHOD FOR PRODUCING SUCH A MULTI-SOLAR CELL

摘要

The invention relates to a multi-solar cell (10) comprising a substrate (12), such as a Ge or GeAs substrate, and a solar cell structure (14) which is deposited on the substrate and which has multiple subcells. The substrate has peripheral lateral surfaces (24), and the solar cell structure has a peripheral surrounding surface (16) which runs at a distance from the lateral surfaces. The aim of the invention is to prevent oxidation and a penetration of moisture. This is achieved in that the surrounding surface (16) of the solar cell structure (14) is coated with a protective electrically insulating first coating, whereby the upper face (17) that faces the radiation is substantially omitted, or the lateral surfaces (24) of the substrate (12) are coated with a protective electrically insulating second coating, whereby the solar cell structure is left exposed, or both the lateral surfaces of the substrate as well as the surrounding surface of the solar cell structure are coated with a third coating, whereby the upper face (17) that faces the radiation is substantially omitted.