Non-radiative transition between electronic states of different spin multiplicity (typically S₁ → T₁). Formally spin-forbidden; rate enhanced by spin–orbit coupling (heavy-atom effect) and by near-degeneracy with the triplet surface…
Non-radiative transition between electronic states of different spin multiplicity (typically S₁ → T₁). Formally spin-forbidden; rate enhanced by spin–orbit coupling (heavy-atom effect) and by near-degeneracy with the triplet surface…