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Poly(ethylene-co-vinyl acetate) (EVA) has been the dominating material in the photovoltaic (PV) encapsulant market for decades, owing to its superior cost-performance balance. To achieve its desired material properties, EVA undergoes a curing reaction during the module encapsulation process. The resulting EVA gel content after encapsulation is an important criterion for the module encapsulation quality...
The role of surface analysis, specifically XPS (X-ray Photoelectron Spectroscopy) and SIMS (Secondary Ion Mass Spectrometry) has been explored to broaden our understanding of TCO / encapsulant interactions focusing on TCO resistivity evolution. Peel laminates of PVB, Ionomer and EVA encapsulants with LPCVD boron doped ZnO were exposed to Damp Heat and removed at different points in the aging cycle...
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