[{"from": "human", "value": "Write solar cell open-circuit voltage of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC1=CC2=C(C(OCC(CCCCCCCCCC)CCCCCCCC)=C(C=C(C3=CC4=C(C(SC(C)=C5)=C5C6=NON=C64)S3)S7)C7=C2OCC(CCCCCCCCCC)CCCCCCCC)S1\n"}, {"from": "gpt", "value": " 1.02\n"}]