[{"from": "human", "value": "Write solar cell short-circuit current density of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC(S1)=CC=C1C2=C3C(C(N(CC(CC)CCCC)C3=O)=O)=C(C(S4)=CC=C4C5=CC=C(C)S5)C6=C2N=C(C7=CC(OCCCCCCCC)=CC=C7)C(C8=CC=CC(OCCCCCCCC)=C8)=N6\n"}, {"from": "gpt", "value": " 7.7\n"}]