Carbazole compounds having a substituent containing a heteroaryl electron-accepting nitrogen-containing and organic electroluminescent device

摘要

And an object thereof is to provide an organic electroluminescent device driving voltage and lifetime of the light emitting element is excellent. By using as an electron transporting material, a carbazole compound represented by the following formula (1-1), to produce an organic electroluminescent device. (In the formula (1-1), R is aryl or heteroaryl, independently, is an electron-accepting nitrogen-containing heteroaryl having a carbon number of 2~24, Hy ₂ and Hy ₁ is Ar ₁ and are each independently, Ar ₂ is. an arylene having 6 to 24 carbon atoms)