申请人:IDEMITSU KOSAN COMPANY LIMITED
公开号:EP0805143A1
公开(公告)日:1997-11-05
The present invention provides a triamine compound represented by general formula (I):
an organic luminescence device which comprises an organic layer and a pair of electrodes disposed on both sides of the organic layer wherein the organic layer at least contains a layer of a light emitting zone and a layer of a hole transporting zone which comprises a hole injecting layer containing the triamine compound and a hole transporting layer, and an organic thin film comprising two layers which are a layer containing a compound represented by general formula (I) and having a thickness of 5 nm to 5 µm and a layer containing a compound represented by general formula (II):
and having a thickness of 5 nm to 5 µm. According to the present invention, an organic electroluminescence device which has little possibility of dielectric breakdown after storage for a long time and shows a remarkably high efficiency of light emission, an organic electroluminescence device which shows a remarkable stability of light emission after continuous use for a long time and has a long life, and an organic thin film which shows excellent hole injecting and transporting properties can be provided.
本发明提供了通式(I)代表的三胺化合物:
一种有机发光器件,它包括有机层和设置在有机层两侧的一对电极,其中有机层至少包含一层发光区和一层空穴传输区,空穴传输区包括含有三胺化合物的空穴注入层和空穴传输层;以及一种有机薄膜,它包括两层,一层是含有通式(I)代表的化合物且厚度为5纳米至5微米的薄膜,另一层是含有通式(II)代表的化合物且厚度为5纳米至5微米的薄膜:
且厚度为 5 纳米至 5 微米。根据本发明,可以提供一种有机电致发光器件,该器件在长期储存后发生介电击穿的可能性很小,并显示出极高的光发射效率;一种有机电致发光器件,该器件在长期连续使用后显示出极高的光发射稳定性,并具有较长的使用寿命;以及一种有机薄膜,该薄膜显示出优异的空穴注入和传输特性。