Characterization of rear-side potential-induced degradation in bifacial
This study analyzes the influence of Al2 O 3, a passivation layer of p-PERC solar cells, on the PID and its underlying mechanism. Experiments were conducted on bifacial p
While there have been many studies on PID in monofacial p-type solar cells [, , , , , ], research on PID in bifacial p-PERC solar cells is still in nascent, requiring further investigation to accurately elucidate the underlying mechanisms.
Potential-induced degradation (PID) of bifacial p-PERC solar cells is investigated. Experiments were conducted to elucidate the PID mechanism. The results improve the understanding of PID and resulting changes in lifetime. A method based on Al 2 O 3 diffusion to detect degradation in the cells is proposed.
A high front side average efficiency of 22.34% and a high bifaciality of 76.87% have been achieved and further optimized to 22.52% and 78%, respectively, for a pโtype PERC cell in a mass production line.
... The p-type crystalline silicon PERC (passivated emitter and rear cell) solar cells have achieved a great success in the last few years and will remain dominant in the photovoltaic (PV) market for the coming years (Chiu et al., 2020;Lv et al., 2020; Yu et al., 2021).
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