| 摘要 |
An organic electroluminescent device comprising an anode, an electroluminescent region, and a cathode. The luminescent region comprises a light-emitting material of Formula I wherein R<SUB>1 </SUB>is independently selected from the group consisting of a hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an amino group, an alkyl amino group, and an aryl amino group; R<SUB>2 </SUB>is independently selected from the group consisting of hydrogen, a hetero atom, and an alkyl group; R<SUB>3 </SUB>is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group; and, R<SUB>4 </SUB>is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group.
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