[{"from": "human", "value": "What is solar cell solar cell maximum value of power conversion efficiency of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC1=CC(C2(C3=CC=C(OCCCCCCCC)C=C3)C4=CC=C(OCCCCCCCC)C=C4)=C(S1)C5=C2C(S6)=C(S5)C7=C6C8=C(C7(C9=CC=C(OCCCCCCCC)C=C9)C%10=CC=C(OCCCCCCCC)C=C%10)C=C(C%11=CC=C(C)C%12=NSN=C%11%12)S8\n"}, {"from": "gpt", "value": " 2.57\n"}]