[{"from": "human", "value": "Given SMILES, write its solar cell average value of power conversion efficiency as a p-type polymer and PC71BM or PCBM. ->  CC1=CC(N(C2=CC=C(OCCCCCCCC)C=C2)C3=C4C=CC(/C=C/C)=C3)=C4C=C1\n"}, {"from": "gpt", "value": " 0.4\n"}]