Surface Modification of ZnSeTe Nanoparticles with Dithiolate-Based Ligands
발표자
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초록
내용
Due to their high color purity and quantum yield, ZnSeTe quantum dots (QDs) are used in display technology as blue-emitting nanoparticles. The thiolate ligands traditionally used for surface modification of QDs are difficult and expensive to synthesize. Additionally, they exhibit slow kinetics, leading to sluggish reactions and an unclear binding mechanism. To address these issues, this study aims to synthesize and introduce a dithiolate-based ligand characterized by high conductivity due to the presence of two sulfur atoms. The binding sites form a chelation structure with the metal, resulting in stronger bonds compared to conventional ligands. These ligands will be used for ligand exchange on ZnSeTe QDs, and the stability and aging effects will be measured. The strong binding is expected to reduce ligand desorption and decrease surface defects caused by oxygen and moisture, thereby enhancing stability and ultimately improving the overall stability of the ligand.