Patent ID: 8609257
Filing Date: 2013-12-17
Classification: C09K,H01L,H05B

Abstract:
1. An organic electro luminescence device, comprising on a substrate: a pair of electrodes and at least one organic layer including a light emitting layer between the electrodes, wherein the light emitting layer includes an iridium complex selected from the group consisting of: and the organic electrolumineseenee device further comprises another organic layer between the light emitting layer and a cathode, the another organic layer containing a compound represented by the following formula (3): wherein each of X 4 and X 5 independently represents a nitrogen atom or a carbon atom, and a ring containing X 4 and X 5 is a pyridine or a pyrimidine; L′ represents a phenylene or a biphenylene; each of R 1 to R 5 independently represents a fluorine atom, a t-butyl group, a phenyl group, a cyano group, a triphenylsilyl group, or a carbazolyl group; R 4 represents a fluorine atom, a t-butyl group, or a triphenylsilyl group; each of n1 to n5 independently represents an integer 0 or 1; and each of p′ and q′ independently represents an integer 1 or 2.