[{"from": "human", "value": "Write solar cell solar cell solar cell band gap of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC(S1)=CC2=C1C(CCC(CCCCC)CCCCCCCC)=C(C=C(C3=C(CCCCCCCC)C=C(C4=C(F)C(F)=C(C5=CC(CCCCCCCC)=C(C)S5)C6=NSN=C64)S3)S7)C7=C2CC[C@H](CCCCC)CCCCCCCC\n"}, {"from": "gpt", "value": " 0.69\n"}]