There are disclosed a charge injection auxiliary material capable of enhancing charge injection properties by adding a slight amount thereof in a functional layer such as a light emitting layer and an organic electroluminescence device having a lowered applied voltage, an enhanced luminous efficiency and a prolonged service life which device contains the aforesaid charge injection auxiliary material.
The above-mentioned charge injection auxiliary material comprises a derivative of tris(styrylarylene) and is employed in an organic electron device wherein a positive-hole transporting organic functional layer is subjected to positive-hole injection from an external layer by incorporating the above material in the above functional layer.
本发明公开了一种电荷注入辅助材料,通过在发光层等功能层中添加少量该材料,能够增强电荷注入特性,并公开了一种有机电致发光器件,该器件包含上述电荷注入辅助材料,可降低外加电压、提高发光效率并延长使用寿命。
上述电荷注入辅助材料由三(
苯乙烯芳基)衍
生物组成,用于有机电子装置中,通过在上述功能层中加入上述材料,正空穴传输有机功能层受到来自外部层的正空穴注入。