Overview of the photophysical properties in toluene at 295 K. Φ_F: fluorescence quantum yield; τ_S1: excited singlet state deactivation time constant of PDI; Φ_T: triplet yield from fsTA; Φ_Δ: singlet oxygen quantum yield.

Compound	Φ F	τ S1/ps	Φ T	Φ Δ
PDI-ph-trityl	0.002	2.5	0.10	0.10
PDI-biph-trityl	0.04	8.7	0.12	0.10
PDI-biph-eTEMPO	0.81	5.2 × 103	n.a.	0.04