New triarylamine derivatives containing special space-filling wing groups and to the use thereof as a hole transport material in electrographic and electrolumkinescent devices are provided. In the triarylamine derivatives, n-1-10, R
1
—R
4
represent optionally substituted phenyl, biphenylyl, naphthyl, phenanthrenyl, anthracenyl, fluorenyl, triarylmethyl aryl, or triarylsilyl aryl; Ar represents a biphenylene, triphenylene, tetraphenylene or fluorenylene-type bridge.
本发明提供了含有特殊空间填充翼基的新型三芳基胺衍
生物,并将其用作电致发光和电致发光器件中的空穴传输材料。在这些三芳基胺衍
生物中,n-1-10、R
1
-R
4
代表任选取代的苯基、
联苯基、
萘基、
菲基、
蒽基、
芴基、三芳甲基芳基或三芳基
硅基芳基;Ar 代表
联苯基、三亚苯基、四亚苯基或
芴基桥。