Fig. 3: AFM images and GIWAXS plots for pristine PM6 film and blend films.

AFM and 2D-GIWAXS plot for PM6 film: (a) and (e), PM6:Y6 film: (b) and (f), PM6:N3 film: (c) and (g), and PM6:L8-BO film: (d) and (h). 1D GIWAXS plot and peak splitting results are shown in i–k.