| abstract |
In an organic electroluminescent device having an aromatic amine derivative of a specific structure having a thiophene structure and an organic thin film layer composed of one or more layers including at least a light emitting layer between a cathode and an anode, at least one layer of the organic thin film layer is As an organic electroluminescent device containing the aromatic amine derivative alone or as a component of a mixture, molecules are hardly crystallized, the driving voltage is lowered, and the yield at the time of manufacturing the organic electroluminescent device is improved and the lifetime is improved. This long organic electroluminescent device and an aromatic amine derivative for realizing it are provided. |