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Abstract

We synthesized two soluble copolyimides (PI) containing Co, Cu-phthalocyanine from 2,2-bis(3,4-dicarboxy-phenyl)hexafluoroisopropane dianhydride-2,4,5,6-tetramethyl-1,4-phenylene-diamine (6FDA-4MPDA) PI and 2,2-bis(3,4-dicarboxy-phenyl)hexafluoroisopropane dianhydride-4,4′-oxy dianiline (6FDA-ODA) PI for organic electroluminescent devices (OELD). The new copolyimides were characterized by Fourier Transform in frared (FT-IR)and ultra-violet (UV) spectroscopy. Some of fundamental OELD performances including current density-applied voltage characteristics were also investigated. It was found that the copolyimides containing Co and Cu-phthalocanine exhibited better hole-transporting properties for OELD than either of the 6FDA-4MPDA PI and 6FDA-ODA PI doped with N,N-diphenyl- N,N′-di(m-toly)benzidine (TPD) or Co-, or Cu-phthalocyanine did..

Keywords

Organic electroluminescent devices (OELD)Cu or Co-phthalocyanine hole-transporting material fluorinated polyimide

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Syntheses and Characterization of Polyimide containing Metal Phthalocyanine for Organic Electroluminescent Devices

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