[{"from": "human", "value": "Given SMILES, write its solar cell solar cell solar cell solar cell maximum value of PCE as a p-type polymer and PC71BM or PCBM. ->  O=C(C1=C2C(C3=C(C=C(C4=CC=C(C5=CC=C(C)S5)S4)S6)C6=C27)=C(C(N(CC(CCCCCCCCCC)CCCCCCCCCCCC)C3=O)=O)C8=C1C=C(C)S8)N(CC(CCCCCCCCCCCC)CCCCCCCCCC)C7=O\n"}, {"from": "gpt", "value": " 8.1\n"}]