ORGANIC ELECTROLUMINESCENT ELEMENT

摘要

Disclosed is an organic electroluminescent element which exhibits high external quantum efficiency and durability when driven at high temperatures and in which the change in color and the rise in voltage are kept at low levels after being driven at high temperatures. Specifically disclosed is an organic electroluminescent element which comprises a pair of electrodes arranged on a substrate and an organic layer composed of at least one layer including a light-emitting layer and intercalated between the electrodes, wherein at least one specific blue-phosphorescent iridium complex is contained in the light-emitting layer, and at least one compound represented by general formula (1) is contained in either one layer contained in the organic layer composed of at least one layer. In general formula (1), R1 to R5 independently represents a specific group or atom; n1 represents an integer of 0 to 5; and n2 to n5 independently represent an integer of 0 to 4.