申请人:LUMINESCENCE TECHNOLOGY CORPORATION
公开号:US20140131664A1
公开(公告)日:2014-05-15
The present invention discloses a new indenotriphenylene derivatives and organic light emitting device using the derivatives. The organic light emitting device employing new indenotriphenylene derivatives as host material can lower driving voltage, prolong half-lifetime, increasing efficiency. The new indenotriphenylene derivatives are represented by the following formula (A):
Wherein A
1
, A
2
are substituted or unsubstituted fused ring hydrocarbon units with one to five rings. Preferably A
1
, A
2
are phenyl group, naphthyl group, anthracenyl group, pyrenyl group, chrysenyl group. Perylenyl group. R
1
to R
4
are identical or different. R
1
to R
4
are independently selected from the group consisting of a hydrogen atom, a halide, 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, a substituted or unsubstituted heteroaryl group having 6 to 30 carbon atoms. X is selected from carbon atom or nitrogen atom.
本发明公开了一种新的茚三苯衍生物以及使用这些衍生物的有机发光器件。采用新的茚三苯衍生物作为主体材料的有机发光器件可以降低驱动电压,延长半寿命,并提高效率。新的茚三苯衍生物由以下式(A)表示:其中A1,A2是具有一个至五个环的取代或未取代的融合环烃基。最好的情况是A1,A2是苯基,萘基,蒽基,芘基,芴基,蒽基或苝基。R1到R4是相同或不同的。R1到R4独立地选自由氢原子,卤素,具有1至20个碳原子的烷基,具有6至30个碳原子的取代或未取代的芳基,具有6至30个碳原子的取代或未取代的芳基烷基,具有6至30个碳原子的取代或未取代的杂芳基。X选自碳原子或氮原子。