[{"from": "human", "value": "Write solar cell power conversion efficiency of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC1=CC2=C(C(OCCCCCCCC)=C(C=C(C3=C4C(SC(C(N5CCCCCCCC)=O)=C4C5=O)=C(C)S3)S6)C6=C2OCCCCCCCC)S1\n"}, {"from": "gpt", "value": " 4.5\n"}]