The invention provides an organic electroluminescence element which comprises a hole transporting layer which comprises a tris(p-terphenyl-4-yl)amine represented by the general formula (I)
wherein R1, R2 and R3 are each independently a hydrogen atom, an alkyl group, a cycloalkyl group which may have substituents or an aryl group which may have substituents as a hole transporting agent, and a hole injecting layer which comprises a hole injecting agent comprising an aromatic tertiary amine having an ionization potential in the range of 5.2-5.6 eV. This organic electroluminescence element can be driven at a low voltage with high efficiency and at high luminance.
本发明提供了一种有机电致发光元件,它包括一个空穴传输层,该层由通式 (I) 所代表的三(
对三联苯-4-基)胺组成
其中 R1、R2 和 R3 各自独立地为氢原子、烷基、可带有取代基的环烷基或可带有取代基的芳基,作为空穴传输层;空穴注入层包括空穴注入剂,空穴注入剂由芳香族叔胺组成,其电离电位在 5.2-5.6 eV 之间。这种有机电致发光元件可在低电压下驱动,具有高效率和高亮度。