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UNSW researchers build 12.6%-efficient kesterite solar cell with lower open-circuit voltage losses

UNSW researchers developed a defect-engineering strategy for wide-bandgap CZTS solar cells that suppresses copper out-diffusion and harmful defects, achieving a 12.6% efficiency and 852.8 mV open-circuit voltage. The certified device reached 12.36% efficiency, highlighting the potential of improved defect control for kesterite and tandem photovoltaics. The post UNSW researchers build 12.6%-efficient kesterite solar cell with lower open-circuit voltage losses appeared first on pv magazine Global .

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UNSW researchers developed a defect-engineering strategy for wide-bandgap CZTS solar cells that suppresses copper out-diffusion and harmful defects, achieving a 12.6% efficiency and 852.8 mV open-circuit voltage. The certified device reached 12.36% efficiency, highlighting the potential of improved defect control for kesterite and tandem photovoltaics.

The post UNSW researchers build 12.6%-efficient kesterite solar cell with lower open-circuit voltage losses appeared first on pv magazine Global.

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https://www.pv-magazine.com/2026/08/18/unsw-researchers-build-12-6-efficient-kesterite-solar-cell-with-lower-open-circuit-voltage-losses/

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