Fig. 4: Evidence of thermally activated delayed fluorescence (TADF) in thin film of Pth-2TPA.
From: Modulation of delayed fluorescence pathways via rational molecular engineering
a Plots of normalized PF (prompt fluorescence), DF (delayed fluorescence at 100 μs delay) at room temperature and PH (phosphorescence at 1 ms delay) at 77 K for Pth-2TPA. b Decay kinetics of 1 wt.% Pth-2TPA in PMMA film as a function of delay time at RT and 77 K, respectively. c Temperature-dependent study of Pth-2TPA (1 wt.% in PMMA matrix) emission at 100 μs delay (λexc. = 400 nm). d Emission intensity as a function of laser excitation energy at 100 μs delay, 500 μs gate for 1 wt.% Pth-2TPA in PMMA film.
