[{"from": "human", "value": "Write solar cell open-circuit voltage of given SMILES as a p-type polymer and PC71BM or PCBM. ->  O=C1C(C2=C(C3=CC=C(C)S3)N1CC(CCCCCCCC)CCCCCCCCCC)=C(C4=CC=C(C5=CC=C(C6=CC(F)=C(C)C=C6)C=C5F)S4)N(CC(CCCCCCCCCC)CCCCCCCC)C2=O\n"}, {"from": "gpt", "value": " 0.89\n"}]