Abstract

Organic electroluminescent (EL) device was fabricated with copper phthalocyanine(CuPC), poly[N-(p-diphenyl amine) phenyl methacrylamide], PDPMA, LB film and rubrene doped Alq3 as hole injection layer, polymer hole transport material and emitting material, respectively. A stable condensed PDPMA monolayer was obtained using arachidic acid (AA) as a surface active material. The ITO/CuPC/PDPMA LB film/rubrene doped Alq3/Al device emitted green light with high brightness of 2400 cd/m2 at a DC 15 V. The effects of a hole injection layer or rubrene dopant on EL performance were investigated.

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