SYNTHESIS AND POST-SYNTHESIS METHOD FOR QUANTUM DOTS USING A NOVEL LIGAND-EXCHANGE METHOD

摘要

PURPOSE: A synthesizing method of quantum dot of high efficiency is provided to prevent sudden degradation of luminous efficiency caused by ligand substitution method, and to convert ligand by only one solution injection, thereby providing simple and economic process. CONSTITUTION: A synthesizing method of quantum dot of high efficiency comprises: a step of synthesizing quantum dot under the presence of organic solvent of 100-350 °C; a step of adding X-Y-Z shaped ligand capable of being dispersed to organic solvent to the quantum dot; and a step of conducting reaction for 1-60 minutes at 100-350 °C. The quantum dot is one or more selected from a group consisting of a group 12-16 compound, a group 11-13-16 compound, a group 13-15 compound, and a group 14-16 compound.