The invention relates to a photovoltaic module comprising (a) a front layer (1) arranged on the sunlight facing side of the photovoltaic module, wherein the front layer (1) comprises a first polypropylene composition, comprising a polypropylene, wherein the transmission of the front layer for light in the wavelength range of 350 nm to 1200 nm is on average at least 65% as compared to a situation without the front layer as determined according to ASTM D1003-13, (b) a sealing layer (2,4) which at least partly encapsulates a plurality of photovoltaic cells (3), wherein the sealing layer (2, 4) comprises a polyolefin elastomer composition comprising an ethylene--olefin copolymer and (c) a back layer (5), wherein the back layer (5) comprises a first reinforced polypropylene layer comprising a second polypropylene composition comprising a polypropylene and optionally a reinforcing filler, wherein the sealing layer is arranged between the front layer and the back layer.

A functional device includes in succession: a first protective film on the front face of the device, with Young's modulus (YM) E1 and thermal dilatation coefficient (TDC) CTE1, a first exterior encapsulation film, with YM E2 and TDC CTE2, an interior encapsulation film, with YM E3 and TDC CTE3, a second exterior encapsulation film, with YM E4 and TDC CTE4, a second plate on the rear face of the device, with YM E5 and TDC CTE5, E1 and E5 being similar or identical, E2 and E4 being similar or identical, E1>E2 and E4<E5, CTE1 and CTE5 being similar or identical, CTE2 and CTE4 being similar or identical, CTE1<CTE2 and CTE4>CTE5, and one film of the first exterior encapsulation film, the interior encapsulation film and the second exterior encapsulation film encapsulating the active elements; and method for producing a functional traversable surface.

A functional device includes in succession: a first protective film on the front face of the device, with Young's modulus (YM) E1 and thermal dilatation coefficient (TDC) CTE1, a first exterior encapsulation film, with YM E2 and TDC CTE2, an interior encapsulation film, with YM E3 and TDC CTE3, a second exterior encapsulation film, with YM E4 and TDC CTE4, a second plate on the rear face of the device, with YM E5 and TDC CTE5, E1 and E5 being similar or identical, E2 and E4 being similar or identical, E1>E2 and E4<E5, CTE1 and CTE5 being similar or identical, CTE2 and CTE4 being similar or identical, CTE1<CTE2 and CTE4>CTE5, and one film of the first exterior encapsulation film, the interior encapsulation film and the second exterior encapsulation film encapsulating the active elements; and method for producing a functional traversable surface.

The present invention is directed to a method of repairing a solar panel backside, to a repaired solar panel backside thusly obtainable, and to the use of a curable composition for the repairing of a solar panel backside comprising at least one site in need of repair.

The present invention is directed to a method of repairing a solar panel backside, to a repaired solar panel backside thusly obtainable, and to the use of a curable composition for the repairing of a solar panel backside comprising at least one site in need of repair.

A backside protective sheet for solar cell modules includes a first layer configured to reflect near-infrared light, a first colored layer arranged closer to a light-receiving surface than the first layer and configured to transmit near-infrared light, and a second colored layer arranged closer to the light-receiving surface than the first colored layer and configured to transmit near-infrared light.

A backside protective sheet for solar cell modules includes a first layer configured to reflect near-infrared light, a first colored layer arranged closer to a light-receiving surface than the first layer and configured to transmit near-infrared light, and a second colored layer arranged closer to the light-receiving surface than the first colored layer and configured to transmit near-infrared light.

Solar panel and photovoltaic devices having an integrated mechanical protection and mitigation layer and having a cooling mechanism. A photovoltaic device includes, from top to bottom: a top-side encapsulant and top-sheet; beneath them, mechanical resilience and mitigation layer, such as a reservoir storing gel or silicone oil or viscous liquid; beneath it, photovoltaic regions that convert incoming light into electricity; beneath them, a cooling mechanism which runs or traverses within the photovoltaic device, such as water circulating in a set of tubes; beneath it, a bottom-side encapsulant and backsheet. Other types of layers and other orders and arrangements of layers are also disclosed.

Solar panel and photovoltaic devices having an integrated mechanical protection and mitigation layer and having a cooling mechanism. A photovoltaic device includes, from top to bottom: a top-side encapsulant and top-sheet; beneath them, mechanical resilience and mitigation layer, such as a reservoir storing gel or silicone oil or viscous liquid; beneath it, photovoltaic regions that convert incoming light into electricity; beneath them, a cooling mechanism which runs or traverses within the photovoltaic device, such as water circulating in a set of tubes; beneath it, a bottom-side encapsulant and backsheet. Other types of layers and other orders and arrangements of layers are also disclosed.

According to the present invention, an intermediate film for a backsheet for photovoltaic modules is provided, the intermediate film comprising a substrate film, for example, a PET film, and a partially cross-linked layer of coating resin. The corresponding method for producing such an intermediate film is also presented, which involves providing a substrate film, depositing and spreading a layer of coating resin on the substrate film, and partially cross-linking the layer of coating resin. According to this method, the cross-linking of the resin is stopped before it is completed so that the intermediate film is obtained, and it is finished during the subsequent process of laminating the intermediate film to the encapsulant of a photovoltaic module.