Fig. 4: PL data and exciton migration dynamics.
a–c ϕPL_490 and ϕPL_554 of C1N (N = 1–16) in toluene (a), toluene/DCM (1:1 v/v) mixed solvent (b), and DCM (c). d Brief illustration of the CTMC model with major exciton decay and transfer processes. Nearest-neighbor exciton migrations over a zinc center kh-in and kh-end, Förster-type exciton transfers (kF[i,j]), radiative (kr-L1 and kr-BL3) and non-radiative (knr-L1 and knr-BL3) decays. See Supplementary Fig. 44 for more detail. e–g PL decay curves of C1N (N = 2, 9, 16) in toluene (e), mixed solvent (f), and DCM (g). The samples were excited at 470 nm. The PL decay curve is smoothed for clarity (the raw decay curve is available in Supplementary Figs. 42, 50–52). h–j Simulated decay curves by the CTMC model in toluene (h), mixed solvent (i), and DCM (j). The experimental data are overlaid as open shapes with faint colors. k–m Experimental (color squares) and simulated (black dots) ϕPL_490-N plots of C1N in toluene (k), mixed solvent (l), and DCM (m). R2 is the residual sum of squares.
