[{"from": "human", "value": "Write solar cell FF of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC1=C2C(C(N(CCCCCCCC)C2=O)=O)=C(C3=CC4=C(C(SC(C)=C5)=C5[Si]4(CC(CC)CCCC)CC(CC)CCCC)S3)[Se]1\n"}, {"from": "gpt", "value": " 0.64\n"}]