ELECTROLUMINESCENT ELEMENT WITH LEAD BROMIDE SYSTEM LAYERED PEROVSKITE COMPOUND AS LUMINESCENT LAYER

摘要

PROBLEM TO BE SOLVED: To provide an electroluminescent element that has lead bromide system layered perovskite as a luminescent layer, is efficient, is drivable at a low voltage and presents luminescent colors ranging from violet to blue. SOLUTION: The element is of a three-layered lamination type, where an organic molecular layer with hole transport properties and an organic molecular layer with electron transport properties hold the lead bromide system layered perovskite luminescent layer in between.