Patent ID: 10797250

Abstract:
An electronic apparatus and a lighting apparatus are provided. The apparatus includes a light-emitting device that has an intermediate layer between two electrodes, wherein the intermediate layer includes an emission layer having a perovskite compound represented by one of the following formulas: 1) [A][B1n1B2(1-n1)][X]3, 2) [A]2[B1n2B2(1-n2)][X]4, 3) [A]3[B1n2B2(1-n2)]2[X]7, and 4) [A]4[B1n2B2(1-n2)]3[X]10, wherein, in Formula 1), A is at least one monovalent organic-cation, a monovalent inorganic cation, or any combination thereof, B1 is a Sm2+ ion, B2 is at least one divalent inorganic cation and does not include a Sm2+ ion, n1 is a real number satisfying 0<n1≤1, n2 is a real number satisfying 0<n2≤1, and X is at least one monovalent anion.