Fig. 4: Interpretation of exciton dynamics.
From: Generating extended foldamer dye stacks and unravelling their evolving exciton dynamics
a, Absorption maxima of the 0–0 transition (Abs0–0, blue), CT band (AbsCT, red) and intensity ratio of AbsCT (600 nm) over Abs0–0 (550 nm) (black) in Tol as a function of molecular size. b, FWHM of the 1(ME) emission in Tol (blue), THF (red) and BCN (purple). c, Fluorescence quantum yield of the 1(ME) state (ΦFL(ME)) in Tol (blue), THF (red) and BCN (purple). The parameters were estimated by fitting of absorption and fluorescence spectra using multiple Gaussian functions (Supplementary Figs. 16–21). d, Schematic illustration of increasing fluorescence quantum yields on stack elongation with fluorescence quantum yields of the 1(ME) state (ΦFL(ME)) of PBI-2 (left), PBI-5 (middle) and PBI-14 (right) in Tol). e, Schematic illustration of the exciton localization process on structural relaxation for PBI-14 with corresponding fluorescence quantum yields of the 1(ME) state (ΦFL(ME)) in Tol.
