[{"from": "human", "value": "What is solar cell open-circuit voltage of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC1=CC=C(C2=C(OCC(CCCCCCCC)CCCCCC)C=C(C3=CC=C(C4=CC5=C(C=C(C)C6=NSN=C65)C7=NSN=C47)S3)C(OCC(CCCCCCCC)CCCCCC)=C2)S1\n"}, {"from": "gpt", "value": " 0.7\n"}]