HETEROLEPTIC IRIDIUM COMPLEXES CONTAINING CARBAZOLE-IMIDAZOLE-CARBENE LIGANDS AND APPLICATION OF THE SAME IN LIGHT-EMITTING DEVICES
申请人:UNIVERSAL DISPLAY CORPORATION
公开号:US20130306940A1
公开(公告)日:2013-11-21
A compound according to Formula I, as well as, devices and formulations containing the compound as described. The compound has the general formula
wherein n=1 or 2; wherein X
1
—X
2
is a bidentate ligand having the formula:
wherein each of R
1
, R
2
, R
3
, R
4
and R
5
is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
wherein each of R
3
, R
4
and R
5
can also be selected from two adjacent substituents joined to form into a ring;
wherein each of Z
1
, Z
2
, Z
3
, Z
4
, Z
6
, Z
7
, Z
8
is independently selected from C, CH or N;
wherein ring A is connected to ring B through N—C bond; and
wherein Y
1
—Y
2
is a different bidentate ligand other than X
1
—X
2
.
根据公式I描述的化合物,以及包含该化合物的装置和配方。该化合物具有以下一般式:
其中n=1或2;其中X1-X2是具有以下式的双齿配体:
其中R1、R2、R3、R4和R5中的每一个都是从氢、氘、卤素、烷基、环烷基、杂基烷基、芳基烷基、烷氧基、芳氧基、氨基、硅烷基、烯基、环烯基、杂基烯基、炔基、芳基、杂芳基、酰基、羰基、羧酸、酯、腈、异腈、硫醇基、亚砜基、磺酰基、膦基和它们的组合中独立选择的;其中R3、R4和R5中的每一个也可以从连接成环的两个相邻取代基中选择;其中Z1、Z2、Z3、Z4、Z6、Z7、Z8中的每一个独立选择为C、CH或N;其中环A通过N-C键连接到环B;并且Y1-Y2是不同于X1-X2的另一种双齿配体。