[{"from": "human", "value": "What is solar cell average value of PCE of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC1=CC=C(C2=C3C(C(N2CC(CCCCCCCCCC)CCCCCCCCCCCC)=O)=C(C4=CC=C(C5=CC=C(C6=CC=C(C)[Se]6)[Se]5)S4)N(CC(CCCCCCCCCCCC)CCCCCCCCCC)C3=O)S1\n"}, {"from": "gpt", "value": " 2.51\n"}]