Flexible front cover tested for glass-free CIGS devices

Researchers in Japan have developed an effective encapsulation with a PET front cover for copper indium gallium diselenide mini-modules. The lab devices withstood damp heat tests, retaining approximately 97 % of their initial efficiency after 3,600 h.Researchers at Ritsumeikan University in Japan have tested a new type of polyethylene terephthalate (PET) front sheet and related encapsulation methods to improve durability of copper indium gallium diselenide (CIGSe) solar mini-modules. They found that such devices exposed to damp heat testing for 3,600 h retained approximately 97 % of their initial ...

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