Fig. 6: Morphology features of the blend films.

a AFM height images of the optimal blend films. b TEM images of the optimal blend films. c 2D GIWAXS patterns and d 2D GISAXS patterns of the corresponding films. (i:PM6:BTP-DC11; ii:PM6:BTP-BTP-DTBO; iii:PM6:BTP-DBO; iv:PM6:BTP-C11-TBO; v:PM6:BTP-BO-TBO).