| 摘要 |
An organic multilayer electroluminescent device including an anode and cathode, and comprising therebetween:a hole transport layer; andan electron transport layer disposed in operative relationship with the hole transport layer;wherein:the hole transport layer includes an organic compound having the formula:wherein:Ar is an aryl moiety;n is an integer of from 1 to 6; andsubstituents R<1 >and R<2 >are each individually hydrogen, or alkyl of from 1 to 24 carbon atoms; aryl or substituted aryl of from 5 to 28 carbon atoms; or heteroaryl or substituted heteroaryl of from 5 to 28 carbon atoms; or fluorine, chlorine, bromine; or cyano group.
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