In an organic electroluminescent element comprising an anode layer, an organic luminescent layer, an inorganic compound layer (or reductive dopant layer) and a cathode layer; the organic luminescent layer comprises an aromatic amine compound of a formula (1), and/or an aromatic amine compound of a formula (2)
wherein A, B, and Ar
1
to Ar
6
are independently a C
6-60
aromatic group which does not contain a styryl group nor an alkenyl group, at least one of A, Ar
1
, Ar
2
, or B, Ar
3
to Ar
6
contains at least three condensed aromatic rings, and p, q and r of a condensation number are an integer of 1 to 6. The element has significantly long half-life and high luminance even at low driving voltages.
在一种有机电致发光元件中,包括阳极层、有机发光层、无机化合物层(或还原掺杂层)和阴极层;有机发光层包括式(1)的芳香族胺化合物和/或式(2)的芳香族胺化合物
其中 A、B 和 Ar
1
至 Ar
6
独立地为 C
6-60
不含
苯乙烯基或烯基的芳香基团,A、Ar
1
、Ar
2
或 B(Ar
3
到 Ar
6
至少含有三个缩合芳香环,且缩合数 p、q 和 r 为 1 至 6 的整数。这种元素的半衰期明显较长,即使在低驱动电压下也有较高的亮度。