TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The first crosslinking reagent comprises an organic peroxide, where the organic peroxide is selected from diacyl peroxides, dialkyl peroxides, diperoxyketals, hydroperoxides, ketoneperoxides, peroxydicarbonates, and peroxyesters. It is selected from Perbutyl E, Perhexa HC, Perhexa 25B, Percumyl D, Perhexa C, Perhexa V, and Perbutyl P. The composition further comprises a second crosslinking reagent, where the second crosslinking agent is selected from Perbutyl E, Perhexa HC, Perhexa 25B, Percumyl D, Perhexa C, Perhexa V, and Perbutyl P. The first optically transparent crosslinkable polymer is selected from ionomer, thermoplastic polyurethane, thermoplastic polyolefin, polymethyl methacrylate, polyvinyl butyral, polydimethyl silicon, ethylene-methyl methacrylate, and ethylene vinyl acetate. Composition comprises a second optically transparent crosslinkable polymer, where the second optically transparent crosslinkable polymer is selected from Ionomer, thermoplastic polyurethane, thermoplastic polyolefin, polymethyl methacrylate, polyvinyl butyral, polydimethyl silicon, ethylene-methyl methacrylate, and ethylene vinyl acetate. The first optically transparent crosslinkable polymer is a host polymer, or a co-polymer. The composition comprises multiple polymers. The composition also comprises a first crosslinking compound, where the first crosslinking compound is selected from trifunctional acrylate, trifunctional methacrylate, zinc diacrylate, zinc dimethacrylate, and N-N'-m-phenylene dimaleimide. The first crosslinking compound is a methacrylate. It is selected from ethylene glycol dimethacrylate, trimethyl propane trimethacrylate, zinc diacrylate, zinc dimethacrylate, triallyl cyanurate, triallyl isocyanurate, and high vinyl poly(butadiene). It is a hybrid crosslinker comprising polybutadiene diacrylate. The composition comprises a second crosslinking compound, where the second crosslinking compound is selected from ethylene glycol dimethacrylate, trimethyl propane trimethacrylate, zinc diacrylate, zinc dimethacrylate, triallyl cyanurate, triallyl isocyanurate, and high vinyl poly(butadiene). Composition further comprises a second organic chromophore. The first organic chromophore is selected from a perylene derivative dye, a benzotriazole derivative dye, and a benzothiadiazole derivative dye. The first organic chromophore comprises a structure of general formula (I).R1-R3=alkyl, a substituted alkyl, or an aryl.The composition further comprises a first adhesion promoter., where the first adhesion promoter comprises acrylic silane material, vinyl silane material, epoxy silane material, or amino silane material. The first adhesion promoter comprises a methacrylate silane material. It comprises 3-methacryloxypropyltrimethoxysilane. Composition comprises a second adhesion promoter, and a first stabilizer, where the first stabilizer is a photostabilizer. The first stabilizer is a hindered amine, or a chromophore. It is selected from Tinuvin 144, Tinuvin 292, Tinuvin 622, Chimassorb 119, Chimassorb 944, Tinuvin 770, Tinuvin 791, Tinuvin 783, Tinuvin 111, and Tinuvin NOR371. The composition also comprises a second stabilizer, and a first antioxidant, where the first antioxidant is selected from a phenolic antioxidant, a phosphite antioxidant, and a thioether antioxidant. The first antioxidant is selected from Irganox 1010, Irganox 1076, Irgfos 168, butylated hydroxytoluene, Irganox PS 800, and Irganox PS802. The composition comprises a second antioxidant, where the second antioxidant is selected from a phenolic antioxidant, a phosphite antioxidant, a thioether antioxidant, Irganox 1010, Irganox 1076, Irgfos 168, butylated hydroxytoluene, Irganox PS 800, and Irganox PS 802. It further comprises an infrared (IR) reflective agent, where the IR reflective agent is selected from metal oxide, mica powder, composite oxide, Talc, titania, ceria, zirconia, silica, magnesia, clay, Kaolin, alumina, infrared pigment, and its combinations. The composition also comprises one or more of an IR absorber, an anti-fog agent, an anti-mist agent, an anti-drop agent, anti-dust agent, a lubricant, a modifier, an inorganic filler, and an anti-static agent. Preferred Composition: The first crosslinking reagent is present in an amount in the range of about 0.1% to about 2.0% by weight of the composition. The first crosslinking compound is present in an amount in the range of about 0.01% to about 10.0% by weight of the composition. The first organic chromophore is present in an amount in the range of about 0.01 wt.% to about 3.0 wt.%. The first adhesion promoter is present in an amount in the range from about 0.001% to about 2.0% by weight of the composition. The first stabilizer is present in an amount in the range of about 0.001% to about 2.0% by weight of the composition. The first antioxidant is present in an amount in the range of about 0.001% to about 0.5% by weight of the composition. The IR reflective agent is present in an amount of in the range of about 0.01% to about 30% by weight of the composition. Preferred Parameters: The refractive index of the first optically transparent crosslinkable polymer is in the range of about 1.4 to about 1.7. The composition is cured at a temperature of between about 130 to about 180 degrees C. The layer is cured for a time ranging from about 5 to about 100 minutes. Preferred Device: The environmental protective cover comprises glass or polymer sheets. The encapsulation structure further comprises a sealing tape around the perimeter of the solar energy conversion device. It also comprises one or more of a glass sheet, a reflective backsheet, edge sealing tape, a framing material, a polymer encapsulation material, or an adhesive layer to adhere additional layers to the system. The structure further comprises an additional polymer layer containing a UV absorber, an antioxidant, or its combination. The solar energy conversion device contains at least one device selected from a III-V or II- VI PN junction device, a copper-indium-gallium-selenium (CIGS) thin film device, an organic sensitizer device, an organic thin film device, a cadmium sulfide/cadmium telluride (CdS/CdTe) thin film device, an amorphous silicon solar cell, a microcrystalline silicon solar cell, a polycrystalline silicon solar cell, and a crystalline silicon solar cell. Preferred Process: The layer is cured for a time ranging from about 5 to about 100 minutes. EXAMPLE - No suitable example given.