Fig. 4: Steady-state and time-resolved CPL experiments of a chiral TADF-active dye BPH in toluene solution.
From: Broadband transient full-Stokes luminescence spectroscopy
Structure of the chiral TADF-active dye BPH is shown at the top right. a–c, Steady-state CPL spectra of (R)- and (S)-enantiomers (excitation 343 nm, 200 fs, 12.5 kHz). d–f, Time-resolved CPL spectra of the (R)-enantiomer. ‘Prompt’ refers to the first 100 ns, ‘Delayed’ refers to approximately 500 ns–80 μs, and ‘Total’ refers to a gate covering the complete emission process (0–80 μs). g, Kinetic trace of the total intensity decay integrated over the full spectrum, with highlighted regions showing the ‘Prompt’ and ‘Delayed’ time regions and parameters of a biexponential fit (red trace). h, Kinetic traces of the dissymmetry factor (average from 445–455 nm) and total intensity decay (integrated over 400–450 nm) with 3 ns time bins and 1 ns steps for the S-enantiomer (50 kHz repetition rate).
