Fig. 5: The kinetics of the exciton diffusion and hole transfer process.

a–c 2D transient absorption spectra of the PM6:BTP-eC9 films processed by o-XY with 0 wt%, 3 wt%, 10 wt% of FDDO. d–f 1D transient absorption spectra of the PM6:BTP-eC9 films processed by o-XY with 0 wt%, 3 wt%, 10 wt% of FDDO. g Kinetic traces probing at 634.1 nm for PM6:BTP-eC9 films processed by o-XY with 0 wt%, 3 wt%, 10 wt% of FDDO. h Comparisons of τ1 and τ2 of different blend films. i Trap density of states (tDOS) spectra of PM6:BTP-eC9 devices processed by o-XY with 0 wt%, 3 wt%, 10 wt% of FDDO. Source data are provided as a Source Data file.