Diffusion-free photon upconversion driven by intramolecular triplet-triplet annihilation in engineered conjugated chromophores

Sara Mattiello, Sara Mecca, Alessandra Ronchi +6

The photon upconversion based on sensitized triplet-triplet annihilation (sTTA-UC) is a spin-flip mechanism exploited to recover the energy of dark triplet states in conjugated sys…