✦ LIBER ✦

A highly efficient tris-cyclometalated iridium complex based on phenylphthalazine derivative for organic light-emitting diodes

✍ Scribed by Yuan Fang; Bihai Tong; Sujun Hu; Shuanjin Wang; Yuezhong Meng; Junbiao Peng; Biao Wang

Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 365 KB
Volume: 10
Category: Article
ISSN: 1566-1199
DOI: 10.1016/j.orgel.2009.02.013

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✦ Synopsis

A novel ligand 9-(4-(4-chlorophenyl)phthalazin-1-yl)-9H-carbazole (HCPC) was designed and prepared, and the corresponding tris-cyclometalated iridium(III) complex Ir(CPC) 3 was readily synthesized by the reaction of the ligand with IrCl 3 Á 3H 2 O at 80 °C for 20 h. A highly efficient organic light-emitting device using this complex as a dopant was obtained. The device fabricated by solution process showed a maximum luminance of 2948 cd/m 2 at a current density of 115.6 mA/cm 2 and a maximum external quantum efficiency of 20.2% at 0.18 mA/cm 2 .

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