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III-V triple-junction (one-sun) vs CIGS thin film

RANKED BY INDEPENDENTLY CERTIFIED RESEARCH-CELL EFFICIENCY #3 VS #7 CHECKED 06 SEPT 2026
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Verdict

III-V triple-junction (one-sun) ranks #3 of 8 on Independently certified research-cell efficiency (39.5%); CIGS thin film ranks #7 (23.35%).

Rank 03 of 8 · leads
Independently certified research-cell efficiency
39.5%
MakerNREL
Date2022
Verified04 Sept 2026
Evidence
NREL 19 May 2022 / Joule: triple-junction IMM cell 39.5% under one-sun global illumination — the NREL-chart one-sun III-V flag.
Rank 07 of 8
Independently certified research-cell efficiency
23.35%
MakerSolar Frontier
Date2018
Verified04 Sept 2026
Evidence
NREL chart / Progress in Photovoltaics tables: Cd-free CIGS 23.35% +/- 0.5%, AIST Nov 2018, Solar Frontier.
Try another pair
Source NREL/NLR Best Research-Cell Efficiency Chart, certifying-lab announcements (Fraunhofer ISE, NREL, LONGi/ESTI/ISFH), and Progress in… Last checked 06 Sept 2026
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