[{"from": "human", "value": "Write solar cell solar cell maximum value of power conversion efficiency of given SMILES as a p-type polymer and PC71BM or PCBM. ->  O=C1C(C2=C(C3=CC=C(C)S3)N1CC(CCCC)CC)=C(C(S4)=CC=C4C(S5)=CC(CCCCCCCCCC)=C5C(O6)=C(CCCCCCCCCC)C(C6=C7)=CC8=C7C(CCCCCCCCCC)=C(C9=C(CCCCCCCCCC)C=C(C)S9)O8)N(CC(CCCC)CC)C2=O\n"}, {"from": "gpt", "value": " 2.28\n"}]