[{"from": "human", "value": "What is solar cell solar cell solar cell maximum value of power conversion efficiency of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC(S1)=CC2=C1C(C3=CC=C(CC(CCCCCCCC)CCCCCC)S3)=C(C=C(C4=CC=C(C5=CC(Cl)=C(C6=CC(CCCCCCCCCCCC)=C(C)S6)C7=NSN=C57)S4)S8)C8=C2C9=CC=C(CC(CCCCCCCC)CCCCCC)S9\n"}, {"from": "gpt", "value": " 0.68\n"}]