Red phosphorescent compounds and organic electroluminescent devices using the same
申请人:Kim Jung Keun
公开号:US20070104980A1
公开(公告)日:2007-05-10
Disclosed herein are red phosphorescent compounds of the following Formulas 1 to 4:
wherein
is
R1, R2 and R3 are independently a C
1
-C
4
alkyl group, R4, R5, R6 and R7 are independently selected from hydrogen, C
1
-C
4
alkyl groups and C
1
-C
4
alkoxy groups, and
is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3-propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione, and 2,2-dimethyl-3,5-hexanedione;
wherein
is
R1 and R2 are independently selected from C
1
-C
4
alkyl groups and C
1
-C
4
alkoxy groups, R3, R4, R5 and R6 are independently selected from hydrogen, C
1
-C
4
alkyl groups and C
1
-C
4
alkoxy groups, and
is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3-propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione and 2,2-dimethyl-3,5-hexanedione;
wherein
is
R1 and R2 are independently selected from C
1
-C
4
alkyl groups and C
1
-C
4
alkoxy groups, R3, R4, R5 and R6 are independently selected from hydrogen, C
1
-C
4
alkyl groups and C
1
-C
4
alkoxy groups, and
is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3-propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione and 2,2-dimethyl-3,5-hexanedione; and
wherein
is
R1 and R2 are independently selected from C
1
-C
4
alkyl groups and C
1
-C
4
alkoxy groups, R3, R4, R5 and R6 are independently selected from hydrogen, C
1
-C
4
alkyl groups and C
1
-C
4
alkoxy groups, and
is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3-propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione and 2,2-dimethyl-3,5-hexanedione. Further disclosed herein is an organic electroluminescent (EL) device comprising an anode, a hole injecting layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injecting layer, and a cathode laminated in this order wherein one of the red phosphorescent compounds is used as a dopant of the light-emitting layer.
本文公开了以下化合物的红色磷光化合物,其中公式1至4如下:
其中,R1、R2和R3分别为C1-C4烷基,R4、R5、R6和R7分别选择氢、C1-C4烷基和C1-C4烷氧基,而Q则选择2,4-戊二酮、2,2,6,6-四甲基庚烷-3,5-二酮、1,3-丙二酮、1,3-丁二酮、3,5-庚二酮、1,1,1-三氟-2,4-戊二酮、1,1,1,5,5,5-六氟-2,4-戊二酮和2,2-二甲基-3,5-己二酮。
其中,R1和R2分别选择C1-C4烷基和C1-C4烷氧基,R3、R4、R5和R6分别选择氢、C1-C4烷基和C1-C4烷氧基,而Q则选择2,4-戊二酮、2,2,6,6-四甲基庚烷-3,5-二酮、1,3-丙二酮、1,3-丁二酮、3,5-庚二酮、1,1,1-三氟-2,4-戊二酮、1,1,1,5,5,5-六氟-2,4-戊二酮和2,2-二甲基-3,5-己二酮。
其中,R1和R2分别选择C1-C4烷基和C1-C4烷氧基,R3、R4、R5和R6分别选择氢、C1-C4烷基和C1-C4烷氧基,而Q则选择2,4-戊二酮、2,2,6,6-四甲基庚烷-3,5-二酮、1,3-丙二酮、1,3-丁二酮、3,5-庚二酮、1,1,1-三氟-2,4-戊二酮、1,1,1,5,5,5-六氟-2,4-戊二酮和2,2-二甲基-3,5-己二酮。
其中,R1和R2分别选择C1-C4烷基和C1-C4烷氧基,R3、R4、R5和R6分别选择氢、C1-C4烷基和C1-C4烷氧基,而Q则选择2,4-戊二酮、2,2,6,6-四甲基庚烷-3,5-二酮、1,3-丙二酮、1,3-丁二酮、3,5-庚二酮、1,1,1-三氟-2,4-戊二酮、1,1,1,5,5,5-六氟-2,4-戊二酮和2,2-二甲基-3,5-己二酮。
本文还公开了一种有机电致发光(EL)器件,其中包括阳极、注入空穴层、空穴传输层、发光层、电子传输层、注入电子层和阴极,依次层压,其中红色磷光化合物之一被用作发光层的掺杂剂。