Monoamine compound, charge-transporting material, and organic electroluminescent device
View Patent ↗The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein R 1 to R 9 represent a hydrogen atom, an aryl group, or an alkyl group; R 1 to R 9 may be the same or different from each other; and R 1 to R 9 may further have an aryl group or an alkyl group as a substituent in the case where R 1 to R 9 are an aryl group or an alkyl group.
1. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer comprises an organic compound comprising a pyridine ring and a phenyl carbazole ring and the hole transport layer comprises a monoamine compound:
selected from the group consisting of
wherein the organic compound is at least one substituted or unsubstituted compound selected from the group consisting of:
2. The organic electroluminescent device according to claim 1 , wherein the light-emitting material is an organometallic complex.