Luminescent iridium(III) complexes with mixed 2-phenylpyridinato-C2, N and dithionate ligands for dopant emitter in OLEDs

被引：14

作者：

Chen, LQ

Yang, CL ^{[1
]}

Qin, JG

Gao, J

Ma, DG

机构：

[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Chem & Phys, Changchun 130022, Peoples R China

来源：

SYNTHETIC METALS | 2005年 / 152卷 / 1-3期

关键词：

optical absorption and emission spectroscopy; electroluminescence; photoluminescence;

D O I：

10.1016/j.synthmet.2005.07.229

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two new iridium(III) complexes with two cyclometalated ligands (2-phenylpyridinato-C-2,N) and one monoanionic dithiolate (N,N'-dialkyl-dithiocarbamate or O,O'-dialkyl-dithiophosphate) as ancillary ligands have been synthesized, and characterized by H-1-NMR, IR, MS and EA. They are all emissive in both solid state and in solution at room temperature. The replacement of beta-diketonate ligand (acac) by dithiolate ligand results in blue shift of emission wavelength in solution photo luminescence spectra. The OLED using complex (ppy)(2)Ir (Et(2)dtc) as dopant in emitting layer gives a maximum current efficiency of 2.9 cd/A and a maximum brightness of 2525 cd/m(2) at 13V.

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页码：225 / 228

页数：4

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