Organic electroluminescent device

摘要

Provided is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. The device comprises a plurality of organic layers between an anode and a cathode piled one upon another on a substrate wherein at least one of the organic layers contains a nitrogen-containing organic compound represented by the following formula (1). In formula (1), X is N-A, an oxygen atom, or a sulfur atom; A is an alkyl group, a cycloalkyl group, an aromatic hydrocarbon group, or an aromatic heterocyclic group; and R is a hydrogen atom, an alkyl group, a cycloalkyl group, an aromatic hydrocarbon group, or an aromatic heterocyclic group.

主权项

1. An organic electroluminescent device comprising an anode, a plurality of organic layers, and a cathode piled one upon another on a substrate wherein at least one of the organic layers contains a compound represented by the following general formula (1); In general formula (1), X is N-A, an oxygen atom, or a sulfur atom; each A is independently 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 30 carbon atoms, or an aromatic heterocyclic group of 3 to 30 carbon atoms exclusive of a fused heterocycle consisting of 4 rings or more; each R 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 exclusive of a fused heterocycle consisting, of 4 rings or more.