METHOD FOR MANUFACTURING PEROVSKITE NANOCRYSTAL PARTICLE LIGHT EMITTING BODY WHERE ORGANIC LIGAND IS SUBSTITUTED, NANOCRYSTAL PARTICLE LIGHT EMITTING BODY MANUFACTURED THEREBY, AND LIGHT EMITTING DEVICE USING SAME

摘要

Provided are a method for manufacturing a perovskite nanocrystal particle light emitting body where an organic ligand is substituted, a light emitting body manufactured thereby, and a light emitting device using the same. A method for manufacturing an organic-inorganic hybrid perovskite nanocrystal particle light emitting body where an organic ligand is substituted may comprise the steps of: preparing a solution including an organic-inorganic hybrid perovskite nanocrystal particle light emitting body, wherein the organic-inorganic hybrid perovskite nanocrystal particle light emitting body comprises an organic-inorganic hybrid perovskite nanocrystal structure and a plurality of first organic ligands surrounding the organic-inorganic hybrid perovskite nanocrystal structure; and adding, to the solution, a second organic ligand which is shorter than the first organic ligands or includes a phenyl group or a fluorine group, thereby substituting the first organic ligands with the second organic ligand. Thus, since energy transfer or charge injection into the nanocrystal structure increases through ligand substitution, it is possible to further increase light emitting efficiency and increase durability and stability by means of a hydrophobic ligand.