[{"from": "human", "value": "Given SMILES, write its solar cell maximum value of power conversion efficiency as a p-type polymer and PC71BM or PCBM. ->  CC(S1)=CC2=C1C3=C(C(C4=CC(CCCCCCCCCC)=C(CCCCCCCCCC)S4)=C(C5=C(C=C(C6=C7C(C8=C(C(N(CCCCCCCC)C8=O)=O)S7)=C(C)S6)S5)S9)C9=C3C%10=CC(CCCCCCCCCC)=C(CCCCCCCCCC)S%10)S2\n"}, {"from": "gpt", "value": " 2.83\n"}]