Yellow organic light-emitting diodes based on phosphorescent iridium(III) pyrazine complexes: Fine tuning of emission color

被引：24

作者：

Ge, Guoping ^{[1
]}

Zhang, Guolin ^{[1
]}

Guo, Haiqing ^{[1
]}

Chuai, Yutao ^{[2
]}

Zou, Dechun ^{[2
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, Dept Polymer Sci & Engn, Educ Minist,Key Lab Polymer Chem & Phys, Beijing 100871, Peoples R China

来源：

INORGANICA CHIMICA ACTA | 2009年 / 362卷 / 07期

关键词：

Yellow phosphor; Iridium pyrazine complex; (MLCT)-M-3; OLED; Fine-tuning of color; INDUCED BLUE PHOSPHORESCENCE; ELECTROPHOSPHORESCENT DEVICES; ELECTROLUMINESCENT DEVICES; RED PHOSPHORESCENCE; IR(III) COMPLEXES; ROOM-TEMPERATURE; EFFICIENT; LIGANDS; LUMINESCENCE; RANGE;

D O I：

10.1016/j.ica.2008.10.001

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and luminescence of a series of new iridium pyrazine complexes were investigated. The phosphorescent peak wavelength can be. ne-tuned in yellow color range of 553-588 nm. Complexes 4 and 6 were used as representative examples for fabrication of multilayered OLEDs. The two OLEDs all exhibited high efficiency. The devices based on complex 4 exhibited an external quantum efficiency of 4.6% (power efficiency 9.7l m/W) and a maximum brightness of 32700 cd/m(2). The device also showed high color purity with an emission maximum at 561 nm and Commission Internationale de l'Eclairage (CIE) coordinates of (x = 0.45, y = 0.54). (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：2231 / 2236

页数：6

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