Researchers from Kyushu University, in collaboration with Johannes Gutenberg University Mainz, have developed a new approach that could significantly improve solar energy conversion.
According to a study published in the Journal of the American Chemical Society, the team demonstrated a method that allows solar systems to capture more energy from sunlight than previously thought possible. Using a “spin-flip” molecular system combined with singlet fission, they achieved energy conversion levels of around 130% in experimental conditions .
Traditional solar cells are constrained by the Shockley–Queisser efficiency limit, meaning a large share of solar energy is lost as heat or remains unused. The new method addresses this by multiplying the usable energy from a single photon, effectively increasing the number of charge carriers.
While still at an early stage, the findings suggest a potential pathway toward more efficient solar technologies. Researchers also note possible applications in light-emitting devices and emerging quantum technologies.
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