[{"from": "human", "value": "Given SMILES, write its solar cell FF as a p-type polymer and PC71BM or PCBM. ->  CC1=CC(N(C(CCCCCCCC)CCCCCCCC)C2=C3C=CC(C4=CC=C(C5=NN=C(C6=CC=C(C)S6)C7=NC(CCCCCCCC)=C(CCCCCCCC)N=C75)S4)=C2)=C3C=C1\n"}, {"from": "gpt", "value": " 0.44\n"}]