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Where and how to cut back-contact TOPCon solar cells to minimize recombination losses

UNSW and DAS Solar used Quokka3 simulations to identify cut-induced losses in back-contact TOPCon cells, finding that gap-region cutting reduces efficiency losses by around 50% compared with emitter-region cutting. They recommend an optimized 0.3 mm gap width, particularly important under low irradiance, to minimize edge recombination and resistive losses without additional edge passivation. The post Where and how to cut back-contact TOPCon solar cells to minimize recombination losses appeared first on pv magazine Global .

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UNSW and DAS Solar used Quokka3 simulations to identify cut-induced losses in back-contact TOPCon cells, finding that gap-region cutting reduces efficiency losses by around 50% compared with emitter-region cutting. They recommend an optimized 0.3 mm gap width, particularly important under low irradiance, to minimize edge recombination and resistive losses without additional edge passivation.

The post Where and how to cut back-contact TOPCon solar cells to minimize recombination losses appeared first on pv magazine Global.

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https://www.pv-magazine.com/2026/08/20/where-and-how-to-cut-back-contact-topcon-solar-cells-to-minimize-recombination-losses/

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