UNSW researchers shed new light on UV-induced degradation in PERC, TOPCon solar cells

The scientists identified that UV exposure in PERC and TOPCon solar cells increases interface defects and makes them more recombination-active, driving ultraviolet-induced degradation. They found strong degradation on PERC front and rear surfaces and TOPCon front surfaces, while the TOPCon rear remains stable due to poly-Si UV absorption.

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