Story perspectives

UNSW Researchers Boost Antimony Solar Cell Efficiency to 11.02%

1/21/2026

22 3

Summary

Story summary

Researchers at the University of New South Wales (UNSW) achieved a certified 10.7% efficiency in antimony chalcogenide solar cells.
UNSW researchers addressed uneven sulfur and selenium distribution during manufacturing by adding sodium sulfide, which improved charge transport and yielded 11.02% laboratory efficiency.
Antimony chalcogenide is promising for tandem solar cells, transparent solar windows, and low-power electronics.
UNSW researchers aim to reach 12% efficiency in coming years through ongoing defect-reduction efforts.

1 of 1

Story summary

Researchers at the University of New South Wales (UNSW) achieved a certified 10.7% efficiency in antimony chalcogenide solar cells.
UNSW researchers addressed uneven sulfur and selenium distribution during manufacturing by adding sodium sulfide, which improved charge transport and yielded 11.02% laboratory efficiency.
Antimony chalcogenide is promising for tandem solar cells, transparent solar windows, and low-power electronics.
UNSW researchers aim to reach 12% efficiency in coming years through ongoing defect-reduction efforts.