| 초록 |
Zwitterionic polymer ligands with adjacent carboxylic acid and amine group on the backbone was synthesized from free radical copolymerization of maleic anhydride and N-vinylformamide. Long aliphatic groups were introduced to the polymer by nucleophilic addition to anhydride group to disperse the perovskite nanocrystals (PNCs) in solution. Polymer ligands were introduced on the surface of CsPbBr3 PNCs by ligand exchange after hot injection or ligand assisted reprecipitation. The polymer ligands with adjacent carboxylic acid and amine groups are expected to attach more tightly to the PNCs surface than oleic acid and oleylamine commonly used in PNC synthesis. In this study, colloidal stability, particle size, and optical properties of PNCs with zwitterionic polymer ligands will be studied. |
