| 摘要 |
The invention has for its object to coat a single layer form of low-refractive organic thin-film layer on a cover glass of a solar battery to enhance the light-collection efficiency of a solar battery module by a simple method, thereby enhancing the ability of collect sunlight. The invention provides a coating layer for solar batteries which can be formed directly on a protective layer of a solar battery module and used in direct contact with the air. The fluorine-containing coating layer for solar batteries is characterized by having a fluorine content of 5% by weight or greater. This coating layer or protective layer is formed by polymerizing and curing a composition comprising a methacrylate compound and/or an acrylate compound containing a fluoroalkyl group and/or a fluorine-containing polymer dissolved or dispersed in an organic solvent, a fluorine-free organic compound containing 1 to 5 acryloyl groups or methacryloyl groups, and a photo-polymerization initiator, optionally with the addition of fumed silica to it.
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