Blaskovits, J. TerenceFumanal, MariaVela, SergiCho, YuriCorminboeuf, Clemence2022-01-152022-01-152022-01-15202210.1039/d1cc06755ahttps://infoscience.epfl.ch/handle/20.500.14299/184484WOS:000738897300001Singlet fission (SF) is a promising multiexciton-generating process. Its demanding energy splitting criterion - that the S-1 energy must be at least twice that of T-1 - has limited the range of materials capable of SF. We propose heteroatom oxidation as a robust strategy to achieve sufficient S-1/T-1 splitting, and demonstrate the potential of this approach for intramolecular SF.Chemistry, MultidisciplinaryChemistrysolar-cellsoxidesHeteroatom oxidation controls singlet-triplet energy splitting in singlet fission building blockstext::journal::journal article::research article