申请人:Kim Jung Keun
公开号:US20070104979A1
公开(公告)日:2007-05-10
Disclosed herein is a red phosphorescent compound of the following Formula 1:
wherein
is
R1 is a C
1
-C
4
alkoxy group, R2, R3, R4 and R5 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1的公式:其中R1是C1-C4烷氧基,R2,R3,R4和R5分别选择氢,C1-C4烷基和C1-C4烷氧基,而选择从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。此外,本文还公开了一种有机电致发光(EL)器件,包括依次层压的阳极,空穴注入层,空穴传输层,发光层,电子传输层,电子注入层和阴极,其中红色磷光化合物之一被用作发光层的掺杂剂。