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National Institute of Metrology (NIM)

The result was certified by China’s National Institute of Metrology (NIM) on a G12H commercial-size cell. Image: Suzhou Maxwell Technologies.

Maxwell claims 32.38% efficiency on perovskite-HJT tandem cell

January 23, 2026
Suzhou Maxwell Technologies has secured a certified power conversion efficiency of 32.38% for a perovskite/silicon heterojunction (SHJ) tandem solar cell.
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