申请人:LUMINESCENCE TECHNOLOGY CORPORATION
公开号:US20140175384A1
公开(公告)日:2014-06-26
The present invention discloses a novel material is represented by the following formula (A), the organic EL device employing the material as blue emitting layer can lower driving voltage, prolong half-lifetime and increase the efficiency.
Wherein m represent an integer of 0 to 4, R
1
and R
2
are identical or different. R
1
and R
2
are independently selected from the group consisting of a hydrogen atom, alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms. R
3
and R
4
are identical or different, R
3
and R
4
are independently selected from the group consisting of hydrogen atom, a halide, a substituted or unsubstituted arylamine, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.
本发明公开了一种新型材料,其由以下式(A)所表示,采用该材料作为蓝色发射层的有机EL器件可以降低驱动电压,延长半寿命并增加效率。其中m表示0到4的整数,R1和R2相同或不同。R1和R2独立地选自由1到20个碳原子的烷基,具有6到30个碳原子的取代或未取代芳基,具有6到30个碳原子的取代或未取代芳基烷基的群。R3和R4相同或不同,R3和R4独立地选自氢原子,卤素,取代或未取代芳基胺,具有1到20个碳原子的取代或未取代烷基,具有6到30个碳原子的取代或未取代芳基的群。