Aromatic amine derivative and organic electroluminescent element employing the same
申请人:Kawamura Hisayuki
公开号:US20060061265A1
公开(公告)日:2006-03-23
Provided are an aromatic amine compound represented by the following Formula (1) and an organic electroluminescent element which has at least one organic thin film layer containing the above aromatic amine derivative in the form of a single component. The organic electroluminescent element described above has a high luminescent efficiency even at a low voltage and a long life. It can emit blue light even at high temperatures. In Formula (1), Ar
1
and Ar
2
each represent naphthyl and the like; Ar
3
to Ar
6
each represent phenyl, naphthyl, phenanthryl and the like; Ar
7
to Ar
10
each represent 1,4-phenylene and the like; L represents a single bond and the like; provided that the conditions of (1) and/or (2) are satisfied:
(1) at least one of Ar
3
to Ar
6
is a condensed aryl group having 10 to 50 nuclear carbon atoms and
(2) at least one of Ar
1
and Ar
2
is a condensed aryl group having 12 to 50 nuclear carbon atoms.
提供了一种由以下式子(1)表示的芳香胺化合物和一种含有至少一种有机薄膜层的有机电致发光元件,该有机薄膜层以单一组分的形式含有上述芳香胺衍生物。上述有机电致发光元件在低电压下具有高发光效率和长寿命。它甚至在高温下也可以发出蓝光。在式(1)中,Ar1和Ar2分别表示萘基等;Ar3到Ar6分别表示苯基、萘基、菲基等;Ar7到Ar10分别表示1,4-苯基等;L表示单键等;前提是满足(1)和/或(2)的条件:(1)Ar3到Ar6中至少有一个是具有10至50个核碳原子的紧缩芳基基团;(2)Ar1和Ar2中至少有一个是具有12至50个核碳原子的紧缩芳基基团。