A new iridium(III) complex with efficient photo- and electro-luminescent properties

Abstract

A new complex of Ir(pi) 2 (acac) (L = 2-(4-bromophenyl)-1-ethyl-1H-phenanthro[9,10-d]imidazole) was designed and synthesized. Its molecular structure was determined by a single-crystal X-ray diffraction analysis. The Ir(III) complex showed characteristic phosphorescence with an emission of 570 nm and a high quantum efficiency of 28%. A high performance yellow OLEDs was successfully fabricated by using this Ir(III) complex as dopant. A new iridium(III) complex of Ir(pi) 2 (acac) (pi = 2-(4-bromophenyl)-1-ethyl-1H-phenanthro[9,10-d]imidazole) with efficient photo- and electro-luminescent properties was conveniently synthesized and characterized by X-ray crystallography. ► Syntheses of iridium complex Ir(pi) 2 (acac) with the 2-(4-bromophenyl)-1-ethyl-1H-phenanthro[9,10-d]imidazole ligand. ► Crystallographic characterization of the Ir(pi) 2 (acac) was studied. ► Ir(pi) 2 (acac) is a promising phosphorescent material for OLEDs.