ORGANIC ELECTROLUMINESCENT MATERIAL, THE PROCESS FOR PREPARING THE SAME AND OLED DEVICE USING THE SAME
申请人:EverDisplay Optronics (Shanghai) Limited
公开号:US20150203485A1
公开(公告)日:2015-07-23
The present invention provides an organic electroluminescent material, the process for preparing same and an OLED device using same. The organic electroluminescent material has a general formula (I): wherein, each of R
1
, R
2
, R
3
and R
4
is independently selected from the group consisting of H, C
1
-C
20
alkyl, C
1
-C
20
alkoxy, ether groups and aromatic amino groups; each of Z is carbon atom or each of Z is nitrogen atom; R is carbazolyl, wherein, n is an integer ranging from 1 to 3 when each of Z is carbon atom, and n is an integer ranging from 1 to 2 when each of Z is nitrogen atom. The organic electroluminescent material of the invention can be used as emitting layer material in an OLED device and improve the luminescent efficiency and lifetime of the device. The luminescence spectral peak may be adjusted by changing the group on the molecular structure.
本发明提供了一种有机电致发光材料,以及制备该材料的方法和使用该材料的OLED器件。该有机电致发光材料具有一般式(I):其中,R1、R2、R3和R4中的每一个独立地选择自H、C1-C20烷基、C1-C20烷氧基、醚基和芳香胺基组成的群体;Z中的每一个为碳原子或Z中的每一个为氮原子;R为咔唑基,其中,当Z中的每一个为碳原子时,n为1到3之间的整数,当Z中的每一个为氮原子时,n为1到2之间的整数。本发明的有机电致发光材料可用作OLED器件中的发光层材料,并提高器件的发光效率和寿命。通过改变分子结构上的基团,可以调整发光光谱峰值。