Design and synthesis of non-fused non-fullerene acceptors containing naphthobisthiadiazole for organic solar cells

Two non-fullerene acceptors containing naphtho[1,2- c :5,6- c ′]bis([1,2,5]thiadiazole) moieties with fluorinated and chlorinated dicyanomethylidene-indan-1-one units as the flanking end-groups were developed and used for constructing organic solar cells.