TECHNOLOGY FOCUS - POLYMERS - Preferred Film: In the multilayer film, the adhesive layer comprises at least 5.5-7.0 wt. but not greater than 20.0 wt. of the UV radiation absorber. The UV radiation absorber is selected from a benzotriazole class absorber, a triazine class absorber, a benzophenone class absorber, a cyanoacrylate class absorber, a benzoxazinone class absorber, an oxanilide class absorber, and combinations. The adhesive layer comprises a light stabilizer, where the light stabilizer is a hindered amine light stabilizer. The adhesive layer comprises the light stabilizer in an amount of 0.1-5 wt, preferably 2.5 wt. The adhesive comprises polyurethane, where the polyurethane is an aliphatic polyurethane. Also, the adhesive comprises acrylic adhesive, where the adhesive is an optically clear adhesive. The fluoropolymer is selected from polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), polytetrafluoroethylene (PTFE), a copolymer of tetrafluoroethylene and perfluoromethylvinylether (PFA), ethylene tetrafluoroethylene copolymer (ETFE), polychlorotrifluoroethylene (PCTFE), ethylene chlorotrifluoroethylene copolymer (ECTFE), fluorinated ethylene propylene copolymer (FEP), a copolymer of ethylene and fluorinated ethylene propylene (EFEP), a terpolymer of tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride (THV), a terpolymer of tetrafluoroethylene, hexafluoropropylene, and ethylene (HTE), and any combination, where the fluoropolymer is ETFE or FEP. The functional portion comprises a barrier polymer layer, where the barrier polymer layer comprises a polymer selected from polyester, polycarbonate, and a combination. The barrier polymer layer comprises polyester, where the polyester comprises a liquid crystal polymer. The polyester comprises polyethylene terephthalate or polyethylene naphthalate. The functional portion further includes an inorganic barrier material disposed on the barrier polymer layer, where the inorganic barrier material is a metal, a metal oxide, a metal nitride, or a metal carbide. The functional portion has a water vapor transmission rate of not greater than 0.4 g/m day, preferably not greater than 10-5 g/m2 day. The multilayer film further comprises an encapsulant layer disposed on the functional portion on a major surface opposite the adhesive layer, where the adhesive layer has a thickness of 0.1-4 mils, and the fluoropolymer layer has a thickness of 0.5-20 mils. The functional portion has a thickness of 0.1-10 mils. The multilayer film has a visible light transmission of at least 85-92%. The multilayer film exhibits a Delta-b index of not greater than 5.0 after 160 hours when exposed to UVB, and a Delta-b index of less than 10.0 after 1991 hours when exposed to UVA. Preferred Device: In the photovoltaic device, the second polymer layer comprises at least 5.5-20.0 wt. of the UV radiation absorber. The first polymer layer comprises a barrier polymer, where the barrier polymer forms a film coated with an inorganic barrier material. The first layer has a water vapor transmission rate of not greater than 0.1 g/m day. The photovoltaic component further comprises a fourth polymer layer disposed between the photovoltaic component and the first polymer layer, the fourth polymer layer comprising an encapsulant. The second polymer layer has a thickness in a range of 0.1-4 mils, the third polymer layer has a thickness in a range of 0.5-5 mils, and the first polymer layer has a thickness in a range of 0.1-10 mils. The polymer layers have a visible light transmission of at least 85%. Preferred Method: In forming the multilayer film, the functional layer comprises a barrier polymer layer coated with an inorganic material layer, the adhesive in contact with the inorganic material layer. The method further comprises coating an encapsulant layer on the functional layer on a surface opposite the adhesive layer. EXAMPLE - No suitable example given.