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III-V triple-junction (one-sun) vs Perovskite/silicon tandem (two-terminal)

RANKED BY INDEPENDENTLY CERTIFIED RESEARCH-CELL EFFICIENCY #3 VS #4 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%); Perovskite/silicon tandem (two-terminal) ranks #4 (35.5%).

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 04 of 8
Independently certified research-cell efficiency
35.5%
MakerLONGi
Date2026
Verified04 Sept 2026
Evidence
LONGi: 35.5% two-terminal perovskite/silicon tandem certified by ESTI (JRC) 14 July 2026. Prior NREL-certified figure for the same architecture was 34.85% (Apr 2025). Lab research cell, not a shipping module.
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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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