Perylene diimide-benzodithiophene D-A copolymers as acceptor in all-polymer solar cells

Two n-type conjugated polymers P(PDI-BDT-Ph) and P(PDI-BDT-Th) were synthesized and all-all-PSCs based on P(PDI-BDT-Ph) as acceptor and PTB7-Th as donor showed a PCE of 4.31% with a Jsc of 11.94 mA cm−2 and a Voc of 0.81 V.178