Katja Heinze

Professor, Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz

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Last updated May 30, 2026

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Researchers surpass solar energy's quantum ceiling using singlet fission and spin-flip emitters

New Capabilities

As of May 2026: Co-senior author; developed the molybdenum spin-flip emitter

Every conventional solar cell hits the same wall: a single photon can knock loose one electron, at most. That constraint, formalized in 1961, caps silicon panels at roughly 33% efficiency.

Updated May 30