Surface Moduification of Blue electro luminescent Quantum Dots with A adamantane based Ligands
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초록
내용
The ligand prevents nanoparticles from agglomerating, improves dispersion stability, and increases luminous efficiency. Among the ligands, Adamantane has high thermal stability, excellent solubility, and lower reactivity than benzene. By using a ligand consisting of a hydrocarbon chain and Thiol in a Quantum Dot, it is possible to improve oxidation resistance of Quantum Dot in an organic solvent and prevent a decrease in quantum yield through a surface treatment process at high temperature. It also has better electrical conductivity than ligands with an aliphatic structure. ROOH has a weaker binding force than ROSH, so we expect to replace ROOH with ROSH, resulting in stronger binding to quantum dots. The ROOH group of 1-adamantane acetic acid ligand and 1-adamantanecarboxylic aicd ligand was converted into a ROSH group. Surface modification will be performed on Quantum Dot to observe dispersion stability and light properties, and device tests will be conducted in the future.