Organic/inorganic hybrid perovskite nanocrystalparticle emitters with 2 dimensional structure method of manufacturing the same and electroluminescence devices using the same

摘要

An organic / inorganic hybrid perovskite nanocrystal particle emitter having a two-dimensional structure, a method of manufacturing the same, and a light emitting device using the same. The organic / inorganic hybrid perovskite nanocrystal particle emitter having a two-dimensional structure includes an organic / inorganic hybrid perovskite nanocrystal structure having a two-dimensional structure capable of being dispersed in an organic solvent. Accordingly, organic or inorganic hybrid perovskite nanocrystals having a crystal structure combining FCC and BCC are formed in a nanocrystal particle emitter, and a lamellar structure in which organic planes and inorganic planes are alternately laminated is formed. The excitons can be confined to give a high color purity. In addition, not only the exciton diffusion distance is reduced but also the exciton binding energy is increased, and thermal ionization and excretion of the exciton due to delamination of the charge carrier are prevented, so that the light emitting efficiency can be obtained at a high room temperature. Furthermore, by synthesizing nanocrystals in a two-dimensional structure as compared with the conventional three-dimensional organic-inorganic hybrid perovskite, the exciton binding energy can be increased to improve the luminous efficiency and increase the durability-stability.;