Singlet-Fission Solar Efficiency Breakthroughs

Recent research reports a singlet-fission photovoltaic approach that uses tetracene and molybdenum-based spin-flip emitters to capture triplet excitons, with lab quantum yields reaching roughly 110% to 130%.

The signal is coherent and strongly centered on proof-of-concept materials science, but the main uncertainty remains whether the chemistry can be translated into solid-state solar devices.