TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The inorganic particulates are calcium carbonate, titanium dioxide, kaolin and clays, alumina trihydrate, talc, silica, antimony oxide, magnesium hydroxide, barium sulfate, mica, vermiculite, alumina, titania, wollastonite and/or boron nitride. The metal layer comprises metal foils, sputtered metal layers or metal oxide layers.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The first polymer film further comprises: 1-50 wt.% of adhesive comprising thermoplastic polymer adhesives, thermoset polymer adhesives or tackifiers; and 10-70 wt.% of inorganic particulates. The first polymer film comprises 25-90 wt.% of chlorosulfonated polyethylene, and 5-35 wt.% of adhesive comprising thermoplastic polymer adhesives or rosin based tackifiers. The first polymer film comprises a single layer encapsulant layer and back-sheet, where the first polymer film has first and second opposite sides, the first side is directly adhered to the rear side of the active solar cell layer, and the second side of the first polymer film is exposed. The first polymer film has a thickness of 1-50 mils. The second side of the first polymer film is adhered to a second polymer film or a metal layer. The second polymer film is a polyester film or a fluoropolymer film. The second polymer film is a fluoropolymer film consisting essentially of fluoropolymer comprising polyvinyl fluoride, polyvinylidene fluoride, PTFE and/or ethylene tetrafluoroethylene. The chlorosulfonated polyethylene has a weight average molecular weight of 75000-300000. The adhesive of the first polymer film comprises an ethylene copolymer comprising ethylene vinyl acetate. The ethylene copolymer is ethylene-methyl methacrylate copolymer, ethylene-ethyl methacrylate copolymer, ethylene-propyl methacrylate copolymer, ethylene-butyl methacrylate copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-propyl acrylate copolymer and/or ethylene-butyl acrylate copolymer. The ethylene copolymer is formed by the polymerization of ethylene and at least one co-monomer comprising methyl methacrylate, methyl acrylic ester, ethyl methacrylate, ethyl acrylic ester, propyl methacrylate, propyl acrylic ester, butyl methacrylate, butyl acrylic ester, methacrylic acid glyceride, methyl hydrogen maleate, ethyl hydrogen maleate and/or maleic anhydride. The chlorosulfonated polyolefin is an elastomer or a synthetic rubber. The chlorosulfonated polyolefin is a chlorosulfonated polyethylene of formula (-((CH2-CH2-CH2-CH(-Cl)-CH2-CH2-CH2)n-CH(-SO2-CL)))m-).m, n = 5-25.