“…As such, to shed light on the 1,3,5-substituted phenyl core, herein we utilize the 1,3,5-substituted phenyl as an electron-donor core, the widely reported unit of diketopyrrolopyrrole (DPP) [28][29][30][31][32][33] as the electron-acceptor unit, and thiophene and two-dimensional benzodithiophene (2D-BDT) [24,25,31,44,45] as alternative units to adjust the molecular configuration and conjugation, thereby obtaining a series of C 3 -or C 2 -symmetric molecules, as shown in Scheme 1. As such, to shed light on the 1,3,5-substituted phenyl core, herein we utilize the 1,3,5-substituted phenyl as an electron-donor core, the widely reported unit of diketopyrrolopyrrole (DPP) [28][29][30][31][32][33] as the electron-acceptor unit, and thiophene and two-dimensional benzodithiophene (2D-BDT) [24,25,31,44,45] as alternative units to adjust the molecular configuration and conjugation, thereby obtaining a series of C 3 -or C 2 -symmetric molecules, as shown in Scheme 1.…”