SMRTR Science & EngineeringMar 25, 2026Interesting Engineering

130% quantum yield: Singlet fission breaks 100% ‘physical ceiling’ for solar cells

SMRTR summary

Researchers from Kyushu University and Johannes Gutenberg University have broken the "physical ceiling" of solar energy conversion by achieving a 130% quantum yield using singlet fission technology and a specialized molybdenum-based "spin-flip" emitter. This breakthrough allows one photon to generate more than one energy carrier, surpassing the traditional 100% limit and potentially revolutionizing solar cell efficiency.

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