A 6H-indolo[2,3-b]quinoxaline derivative has a structure of formula (I). R
9
is a member selected from the group consisted of an aryl group having one or more substituents and a heteroaryl group having one or more substituents, and R
1
to R
8
are substituents. The 6H-indolo[2,3-b]quinoxaline derivative of the present invention incorporates an indole and a quinoxaline group therefore inherits good energy transfer ability from indole and good electron-injection ability from quinoxaline. The compound of the present invention may function as a host material or a dopant in the light-emitting layer. In addition, the compound of the present invention may function as hole transport material, electron transport material, hole blocking material, electron blocking material, hole injecting material or electron injecting material.
一种6H-
吲哚[2,3-b]
喹啉衍
生物具有公式(I)的结构。R9是从含有一个或多个取代基的芳基基团和含有一个或多个取代基的杂环基团中选择的成员,而R1至R8是取代基。本发明的6H-
吲哚[2,3-b]
喹啉衍
生物包含
吲哚和
喹啉基团,因此从
吲哚继承良好的能量转移能力和从
喹啉继承良好的电子注入能力。本发明的化合物可以作为发光层中的主体材料或掺杂剂。此外,本发明的化合物可以作为空穴传输材料、电子传输材料、空穴阻挡材料、电子阻挡材料、空穴注入材料或电子注入材料。