ORGANIC-INORGANIC HYBRID PEROVSKITE NANOCRYSTAL PARTICLE LIGHT EMITTING BODY HAVING TWO-DIMENSIONAL STRUCTURE, METHOD FOR PRODUCING SAME, AND LIGHT EMITTING DEVICE USING SAME

摘要

Provided are an organic-inorganic hybrid perovskite nanocrystal particle light emitting body having a two-dimensional structure, a method for producing the same, and a light emitting device using the same. The organic-inorganic hybrid perovskite nanocrystal particle light emitting body having a two-dimensional structure comprises an organic-inorganic hybrid perovskite nanocrystal structure having a two-dimensional structure which can be dispersed in an organic solvent. Accordingly, the nanocrystal particle light emitting body comprises an organic-inorganic hybrid perovskite nanocrystal having a crystal structure combining FCC and BCC; forms a lamellar structure where organic planes and inorganic planes are accumulated in an alternating manner; and can exhibit high color purity by confining excitons in the inorganic planes. In addition, since the exciton diffusion distance decreases and exciton binding energy increases, it is possible to prevent exciton annihilation caused by thermal ionization and delocalization of a charge carrier, such that the nanocrystal particle light emitting body can have light emitting efficiency at high room temperature.