[{"from": "human", "value": "Write solar cell solar cell VOC of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC1=CC(CC(CC)CCCC)=C(C2=NC(SC(C3=C(CC(CCCC)CC)C=C(C4=CC([Si](CC(CC)CCCC)(CC(CCCC)CC)C5=C6SC(C)=C5)=C6S4)S3)=N7)=C7S2)S1\n"}, {"from": "gpt", "value": " 13.18\n"}]