Patent ID: 8986858
Filing Date: 2015-03-24
Classification: C07D,H01L,Y10S

Abstract:
1. An organic electroluminescent device comprising an anode, organic layers, and a cathode piled one upon another on a substrate wherein at least one layer selected from the group consisting of a light-emitting layer, a hole-transporting layer, an electron-transporting layer, and a hole-blocking layer contains a carbazole compound represented by general formula (1); In general formula (1), each X is independently C—Y or a nitrogen atom and each Y is independently a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, a cycloalkyl group of 3 to 11 carbon atoms, an aromatic hydrocarbon group of 6 to 18 carbon atoms, or an aromatic heterocyclic group of 3 to 18 carbon atoms; n is an integer of 2 to 4; A is an n-valent aromatic hydrocarbon group of 6 to 50 carbon atoms or an n-valent aromatic heterocyclic group of 3 to 50 carbon atoms; L is a direct bond; each R is independently a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, or a cycloalkyl group of 3 to 11 carbon atoms; however, A cannot have a fused ring structure; wherein the layer containing the carbazole compound represented by general formula (1) is the light-emitting layer.