[{"from": "human", "value": "Given SMILES, write its solar cell solar cell solar cell open-circuit voltage as a p-type polymer and PC71BM or PCBM. ->  CC1=CC=C(C2=C(N=C(C3=CC(OCCCCCCCC)=CC=C3)C(C4=CC=CC(OCCCCCCCC)=C4)=N5)C5=C(C)C=C2)S1\n"}, {"from": "gpt", "value": " 0.64\n"}]