| 초록 |
In a nanoscale regime, controlling the morphology and composition of NPs are crucial for tuning their property such as electrical, optical, and magnetic. For such composition and morphology modulation, a new synthetic approach would be the post-synthetic transformations such as cation exchange, anion exchange, and galvanic replacement. In this study, we investigate the morphological change in colloidal ZnO NPs synthesized by controlling the content of different surfactant ligands and the chemical transformation from ZnO to ZnS by anion exchange reaction. In the NP synthesis with morphological change, the ZnO NPs were transformed from quasi-spherical to tadpole-shape as the molar ratio of OLAM/TOP was controlled. In chemical transformation, the TBDS was utilized as a sulfur precursor for the anion exchange from ZnO to ZnS. The anion exchanged NPs were transformed from solid sphere to hollow structure. This study offers insights into the synthesis of NP with the control of morphology and composition using surfactant ligand and anion exchange. |
