申请人:Hodogaya Chemical Co., Ltd.
公开号:EP2960958A1
公开(公告)日:2015-12-30
An organic EL device having high efficiency, low driving voltage and a long lifetime is provided by combining various materials for an organic EL device, which are excellent, as materials for an organic EL device having high efficiency and high durability, in hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state and 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 first hole transport layer, a second hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the second hole transport layer includes an arylamine compound represented by the following general formula (1).
[Chemical Formula 1]
作为具有高效率和高耐用性的有机电致发光器件的材料,各种有机电致发光器件材料在空穴和电子注入/传输性能、电子阻断能力、薄膜状态稳定性和耐用性方面都非常出色,通过将这些材料组合在一起,可以提供一种具有高效率、低驱动电压和长寿命的有机电致发光器件,从而使各种材料有效地展现其特性。
在至少具有阳极、空穴注入层、第一空穴传输层、第二空穴传输层、发光层、电子传输层和阴极的有机电致发光器件中,第二空穴传输层包括由以下通式(1)表示的芳基胺化合物。
[化学式 1]