MONOAMINE COMPOUND, CHARGE-TRANSPORTING MATERIAL, AND ORGANIC ELECTROLUMINESCENT DEVICE

摘要

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 R1 to R9 represent a hydrogen atom, an aryl group, or an alkyl group; R1 to R9 may be the same or different from each other; and R1 to R9 may further have an aryl group or an alkyl group as a substituent in the case where R1 to R9 are an aryl group or an alkyl group.

主权项

1. A monoamine compound represented by the following formula (II) and having a molecular weight of 400 to 2500: wherein R11 to R22 represent a hydrogen atom, an aryl group, or an alkyl group; R11 to R22 may be the same or different from each other; provided that any one of R11 to R22 is an aryl group or an alkyl group; R11 to R22 may further have an aryl group or an alkyl group as a substituent in the case where R11 to R22 are an aryl group or an alkyl group; and R11 to R22 may be combined with an adjacent substituent to form a ring.