[{"from": "human", "value": "Given SMILES, write its solar cell short-circuit current density as a p-type polymer and PC71BM or PCBM. ->  CC1=CN=C(C(N(CC(CCCCCCCCCC)CCCCCCCCCCCC)C2=O)=C3C2=C(C4=NC=C(C5=CC(C=C(SC(C)=C6)C6=C7)=C7S5)S4)N(C[C@H](CCCCCCCCCCCC)CCCCCCCCCC)C3=O)S1\n"}, {"from": "gpt", "value": " 6.2\n"}]