[{"from": "human", "value": "Given SMILES, write its solar cell average value of PCE as a p-type polymer and PC71BM or PCBM. ->  O=C1C(C2=C(C3=CC4=C(C=C(C)S4)S3)N1CCCC(CCCCCCCCCC)CCCCCCCC)=C(C5=CC6=C(C=C(C7=CC=C(C)[Se]7)S6)S5)N(CCCC(CCCCCCCC)CCCCCCCCCC)C2=O\n"}, {"from": "gpt", "value": " 7.6\n"}]