To provide an organic EL device having low driving voltage, high luminous efficiency, and particularly a long lifetime by combining various materials for an organic EL device having excellent hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state, and durability as materials for an organic EL device having high luminous efficiency and high durability so as to allow the respective materials to effectively reveal their characteristics.
In the organic EL device having at least an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode, in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and a radialene derivative of the following general formula (2).
为了提供一种具有低驱动电压、高发光效率,特别是长寿命的有机电致发光器件,将各种具有优异的空穴注入和电子注入/传输性能、电子阻断能力、薄膜状态稳定性和耐用性的有机电致发光器件材料组合在一起,作为具有高发光效率和高耐用性的有机电致发光器件的材料,从而使各材料有效地显示其特性。
在至少具有阳极、空穴注入层、空穴传输层、发光层、电子传输层和阴极的有机电致发光器件中,空穴注入层依次包括以下通式(1)的芳基胺化合物和以下通式(2)的辐射烯衍
生物。