Fig. 5: Signature of delayed fluorescence via triplet-triplet annihilation (TTA) in thin film of Pth-1PCz.
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. (b) Decay kinetics of 1 wt.% Pth-1PCz PMMA film as a function of delay time at RT and 77 K, respectively. (c) Emission intensity as a function of laser excitation power at 100 μs delay, 150 μs gate for Pth-1PCz. (d) Comparison in decay kinetics of Pth-1PCz in 1 wt.% PMMA vs. neat film.
