Rational design of perylenediimide-based polymer acceptor for efficient all-polymer solar cells

Two perylenediimide (PDI)-based polymer acceptors named as PF-PDI and PBDT-PDI were synthesized, in which PDI was used as electron-deficient unit and fluorene (F) or benzodithiophene (BDT) were used as electron-rich unit. All-PSCs base on PF-PDI acceptor exhibited a high efficiency of ∼4.5%.233