| 초록 |
We synthesized halideperovskite nanocrystals by controlling the ligand length and amount, andinvestigated the effects on the change in the ligand length and amount on theshape, size, crystal structure, and optical properties of the perovskitenanocrystals. The results revealed the tendency and respective effects of amineand acid ligands on perovskite nanocrystals. The amine ligands bind directly tothe perovskite nanocrystals. Consequently, the amine ligands with longer chainsinterfered with the aggregation of the initially formed nanocrystals, thuslimiting the size of the halide perovskite nanocrystals. Similar to the amineligands, the acid ligands directly bonded with the perovskite nanocrystals;however, they were also indirectly distributed around the nanocrystals, thusaffecting their structure and dispersion. Consequently, the acid ligandsaffected the assembly of the initially formed nanocrystals, which determinesthe shape and crystal structure of the nanocrystals.
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