摘要 |
Disclosed herein is a red phosphorescent compound of the following Formula 1: wherein is R1 is a C<SUB>1</SUB>-C<SUB>4 </SUB>alkoxy group, R2, R3, R4 and R5 are independently selected from hydrogen, C<SUB>1</SUB>-C<SUB>4 </SUB>alkyl groups and C<SUB>1</SUB>-C<SUB>4 </SUB>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.
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