[{"from": "human", "value": "Write solar cell maximum value of PCE of given SMILES as a p-type polymer and PC71BM or PCBM. ->  O=C(N1CC(CCCCCC)CCCCCCCC)/C(C(C1=C2)=CC=C2C3=CC(CCCCCC)=C(C4=CC=C(C5=C(CCCCCC)C=C(C)S5)S4)S3)=C6C(N(CC(CCCCCCCC)CCCCCC)C7=C/6C=CC(C)=C7)=O\n"}, {"from": "gpt", "value": " 6.6\n"}]