Figure 4. DAS for dark (solid line) and light (dotted line) states obtained from global analysis of streak-camera data measured at 77 K upon 580 nm excitation.

(A)—The lifetimes of the corresponding DAS are presented in the legend with the corresponding colours. The slowest component was always fixed to 2 ns. This lifetime was obtained independently for many datasets, but due to the limited time window of our setup (800 ps), it was not possible to resolve it in a reliable way. The shape of both fluorescence spectra at t = 0 were identical and they were normalized to each other. (B–E)— Comparison of individual DAS as presented in (A). The first DAS (11 ps) was identical for both measurements and is not presented here. T = 0 and time-integrated spectra are presented in Supporting Material (Fig S4).