A donor polymer based on 3-cyanothiophene, a structurally simple unit, is synthesized for organic solar cells, which exhibited prominent power conversion efficiency and excellent batch-to-batch reproducibility in a wide molecular weight range.
OPDs with ultra-low dark current density and high detectivity are developed via interfacial and morphological modifications in the ternary device. A highest D* at 1060 nm exceeding 8.2 × 10 12 Jones is achieved with fast response and wide LDR.