[{"from": "human", "value": "Write solar cell fill factor of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC1=C(CC(CCCCCCCCCC)CCCCCCCCCCCC)C=C(C2=C(F)C(F)=C(C3=CC(CC(CCCCCCCCCCCC)CCCCCCCCCC)=C(C4=CC=C(C5=CC=C(C)S5)S4)S3)C6=NON=C62)S1\n"}, {"from": "gpt", "value": " 0.66\n"}]