Abstract

A π-conjugated polymer-iridium complex containing the ligand in the main chain was synthesized by the Suzuki coupling method, and was applied to organic light-emitting devices (OLEDs) as the emitter material. The polymer-iridium complex showed red photoluminescence and electroluminescence with the maximum external quantum efficiency of ca. 3% by using 4,4′-N,N′-dicarbazole-biphenyl and 2-(4-biphenylyl)-5-(4-tert-butyl-phenyl)-1,3,4-oxadiazole blended into the polymer emitter layer. Copyright © 2005 John Wiley & Sons, Ltd.

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