Synthesis and electrophosphorescent properties of iridium complexes based on phenylpyridine-based main ligand for organic light-emitting diodes

被引：3

作者：

Song, Myungkwan ^{[2
]}

Park, Jin Su ^{[2
]}

Nam, Ki-Sun ^{[2
]}

Yoon, Mikyoung ^{[2
]}

Yoon, Hoe Won ^{[2
]}

Kim, Ae Jin ^{[2
]}

Kim, Young Inn ^{[2
]}

Gal, Yeong-Soon ^{[3
]}

Lee, Jae Wook ^{[1
]}

Jin, Sung-Ho ^{[2
]}

机构：

[1] Dong A Univ, Dept Chem, Pusan 604714, South Korea

[2] Pusan Natl Univ, Dept Chem Educ, Interdisciplinary Program Adv Informat & Display, Ctr Plast Informat Syst, Pusan 609735, South Korea

[3] Kyungil Univ, Polymer Chem Lab, Hayang 712701, South Korea

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 326卷 / 01期

关键词：

Solution process; Chemical vapor deposition; Organic light-emitting diodes; PHOSPHORESCENCE; EFFICIENCY; EMISSION; DEVICES;

D O I：

10.1016/j.jcrysgro.2011.01.062

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A novel cyclometalated ligand 2-(2,4-dimethoxypheny1)-5-trifluoromethylpyridine (MeO2CF3PPY) and its complexes bis[2-(2,4-dimethoxy-phenyl)-5-trifluoromethyl pyridinato-N,C-2]iridium 2-pyrazine carboxylic acid (MeO(2)CF(3)ppy)(2)Ir(prz) and bis[2-(2,4-dimethoxy-phenyl)-5-trifluoromethyl pyridinato-N,C-2]iridium 5-methyl-2-pyrazine carboxylic acid (MeO2CP3PPY)(2)Ir(mPrz) were synthesized. Trifluoromethyl and dimethoxy groups were introduced into main ligand for tuning the emission color. The phosphorescence organic light-emitting diodes (PhOLEDs) based on these complexes with the configuration of ITO/PEDOT:PSS (40 nm)/PVK:TCTA:OXD-7:Ir complex (50 nm)/BCP (20 nm)/Alq(3) (10 nm)/LiF (1 nm)/Al (100 nm) were fabricated. The solution-processed PhOLEDs based on (MeO2CP3PPY)(2)Ir(mprz) exhibited a maximum quantum efficiency of 2.97% and luminance efficiency of 4.95 cd/A with CIE coordinate of (0.43, 0.53). Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：103 / 108

页数：6

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