[{"from": "human", "value": "Given SMILES, write its solar cell average value of PCE as a p-type polymer and PC71BM or PCBM. ->  CC1=CC2=C(C(SC(C3=CC=C(C4=CC=C(C5=CC=C(C)S5)C6=NSN=C46)S3)=C7)=C7[Ge]2(CC(CCCCCCCC)CCCCCCCCCC)CC(CCCCCCCCCC)CCCCCCCC)S1\n"}, {"from": "gpt", "value": " 3.51\n"}]