[{"from": "human", "value": "What is solar cell solar cell short-circuit current density of given SMILES? ->  CC1=CC(C2=CC=C(CCCCCCCC)C=C2)=C(C3=CC=C(C4=CC=C(C)S4)S3)S1\n"}, {"from": "gpt", "value": " POPTT\n"}]