Extended Data Fig. 4: Temperature dependent EEA rate at 1015 cm−3.
From: Exciton annihilation in molecular aggregates suppressed through quantum interference
(a) Temperature-dependent annihilation rate for N-Ph PDI-(1) crystal (green) and 4Ph PDI-(1) crystal (blue) for an initial exciton density of 1015 cm−3. EEA rate is suppressed by more than two orders of magnitude in N-Ph PDI at low temperature in contrast to a weak temperature dependence observed for 4Ph PDI. Data are presented as \(\gamma\) +/− SE, where the shaded areas indicate the standard error (SE) from the numerical fitting as described in the main text. (b) Comparing the experimentally determined ratio of EEA rates \(\frac{\gamma \left(N-{Ph\; PDI}\right)}{\gamma \left(4{Ph\; PDI}\right)}\) against the ratios predicted by the coherent microscopic theory and the incoherent diffusion-limited theory. Data are presented as the ratio of \(\gamma\) +/− SE, where shaded areas indicate the standard error (SE) of the ratio of EEA rates, propagating from those of γ.
