Fig. 4. Qualitative Jablonski diagram for a sequential combination of TTA-UC, FRET, and photosubstitution in liposomes L123 under red light irradiation. Abbreviations: intersystem crossing (ISC), triplet–triplet energy transfer (TTET), triplet–triplet annihilation (TTA), Förster resonance energy transfer (FRET), metal to ligand charge transfer (MLCT) state, metal-centred (MC) state.
