| 摘要 |
PURPOSE: An electroluminescent device with polyphenyl hydrocarbon hole transport layer is provided for an organic compound outside the class of aromatic amines as a hole transport layer in organic electroluminescent device CONSTITUTION: An organic multilayer electroluminescent device including an anode and cathode, and comprising therebetween a hole transport layer. An electron transport layer disposed in operative relationship with the hole transport layer. 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, and substituents 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 F, Cl, Br or cyano group.
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