Perovskite nanocrystal particle emitters having gradient-alloy structure method of manufacturing the same and electroluminescence devices using the same

摘要

An organic / inorganic hybrid perovskite nanocrystal particle emitter having a gradient structure, a method for producing the same, and a light emitting device using the same are provided. The organic / inorganic hybrid perovskite nanocrystal particle emitter of a gradient structure includes an organic hybrid perovskite nanocrystal capable of dispersing in an organic solvent, and the nanocrystal has a gradient composition whose composition changes from the center to the outward direction . Therefore, the gradual change in the content in the nanocrystals can control the uniformity of the fraction in the nanocrystals, reduce the surface oxidation and improve the exciton confinement in the perovskite existing in a large amount in the interior, Durability - can also increase stability.