| 摘要 |
An organic electroluminescent device in which a light emitting layer is disposed between a hole injection electrode and an electron injection electrode, and a hole transporting layer is disposed between a hole injection electrode and a light emitting layer, wherein the hole transporting layer contains an electron trapping material exhibiting a reversible cathode reduction process in cyclic voltammetry measurement and having a reduction potential smaller than that of a hole transporting material contained in the hole transporting layer, or wherein the electron transporting layer contains a hole trapping material exhibiting a reversible anode reduction process in cyclic voltammetry measurement and having an oxidation potential smaller than that of an electron transporting material contained in the electron transporting layer. |
