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Verfahren zur Herstellung eines fotovoltaischen Moduls

Photovoltaic module with low water vapor permeability, useful e.g. in emergency telephones, camper vans, solar panels or solar power stations
: Plessing, A.; Langowski, H.; Moosheimer, U.

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EP 1998-112319 A: 19980703
WO 1999-EP4505 A: 19990630
EP 1998-112319 A: 19980703
EP 1018166 B1: 20040922
Patent, Elektronische Publikation
Fraunhofer IVV ()

EP 969521 A UPAB: 20000308 NOVELTY - A photovoltaic module (1) in the form of a laminate with a solar cell system (2) as the core between encapsulating materials (3, 3'), in which at least one of these materials (3') comprises a sealing layer (4') and a barrier layer (6) consisting of a plastic film or compound foil with an inorganic oxide layer (7) deposited from the vapor phase. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a process for the production of a module (1) by (a) vapor-phase deposition of an oxide layer (7) on a plastic film or compound foil (6), (b) encapsulation of a solar cell system (2) between sealing layers (4, 4'), (c) transferring the module stack to the loading station of a system in which it is kept at a temperature below the softening point of layers (4, 4'), (d) transferring the stack to a vacuum laminator in which it is heated under vacuum to the softening point of (4, 4') and (e) letting in air without cooling, transferring the composite body to a hardening oven and hardening layers (4, 4') to form a laminated module (2) which is then cooled and taken out for further processing. USE - For the production of electrical energy from sunlight, e.g. in emergency telephones, camper vans, buildings with integrated roof and cladding systems, large-scale units and solar power stations. ADVANTAGE - A photovoltaic module with high transparency in the visible/near UV regions and a good blocking action against short-wave UV, which is resistant to weathering and also essentially impermeable to water vapor, but without showing the disadvantage associated with prior-art aluminum barrier layers (i.e. stray currents due to the conductivity of the metal).