Luminescent composites comprising polymers and phosphors and use of the composites in photovoltaic cells

摘要

The composite material of the present invention comprises (a) a polymer selected from ethylene-vinyl acetate, polyethylene terephthalate, ethylene tetrafluoroethylene, ethylene trifluorochloroethylene, perfluorinated ethylene-propylene, polyvinyl butyral, polyurethane and silicone; b) an external quantum efficiency of 40% or more for at least one excitation wavelength of 350 nm to 440 nm; an absorption of 10% or less for wavelengths above 440 nm; from rare earths, zinc and manganese having an average particle size of less than 1 μm An inorganic phosphor based on at least one element selected, and having a light emission maximum in a wavelength region of 440 nm to 900 nm. [Selection figure] None