High quantum efficiency and color stability in white phosphorescent organic light emitting diodes using a pyridine modified carbazole derivative

被引：19

作者：

Lee, Chil Won ^{[1
]}

Lee, Jun Yeob ^{[1
]}

机构：

[1] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi Do, South Korea

来源：

DYES AND PIGMENTS | 2014年 / 103卷

关键词：

Carbazole; High triplet energy; Blue device; White device; Quantum efficiency; Color stability; PHOSPHINE OXIDE HOST; TRIPLET EXCITONS; DEVICES; EMITTERS;

D O I：

10.1016/j.dyepig.2013.11.020

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A high triplet energy material derived from carbazole and pyridine, 9,9'-(5-(2-methylpyridin-3-yl)-1,3-phenylene)bis(9H-carbazole), was synthesized as the host material for blue and white phosphorescent organic light-emitting diodes. The 9,9'-(5-(2-methylpyridin-3-yl)-1,3-phenylene)bis(9H-carbazole) host showed a high triplet energy of 2.99 eV for efficient energy transfer to blue triplet emitter. High quantum efficiencies of 19.8% and 17.1% were achieved in blue and white phosphorescent organic light-emitting diodes using the 9,9'-(5-(2-methylpyridin-3-yl)-1,3-phenylene)bis(9H-carbazole) host material. In addition, the 9,9'-(5-(2-methylpyridin-3-y1)-1,3-phenylene)bis(9H-carbazole) based white phosphorescent organic light-emitting diodes showed good color stability. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：34 / 38

页数：5

共 16 条

[1] High-purity white light from a simple single dopant host-guest white organic light-emitting diode architecture [J].

Anzenbacher, Pavel, Jr. ;

Montes, Victor A. ;

Takizawa, Shin-ya .

APPLIED PHYSICS LETTERS, 2008, 93 (16)

[2] Improved efficiency for white organic light-emitting devices based on phosphor sensitized fluorescence [J].

Cheng, G ;

Zhang, YF ;

Zhao, Y ;

Liu, SY ;

Ma, YG .

APPLIED PHYSICS LETTERS, 2006, 88 (08)

[3] White organic light-emitting devices with a phosphorescent multiple emissive layer [J].

Cheng, Gang ;

Zhang, Yingfang ;

Zhao, Yi ;

Lin, Yuanyuan ;

Ruan, Chunyan ;

Liu, Shiyong ;

Fei, Teng ;

Ma, Yuguang ;

Cheng, Yanxiang .

APPLIED PHYSICS LETTERS, 2006, 89 (04)

[4] Efficient organic electrophosphorescent white-light-emitting device with a triple doped emissive layer [J].

D'Andrade, BW ;

Holmes, RJ ;

Forrest, SR .

ADVANCED MATERIALS, 2004, 16 (07) :624-+

[5] A Single Phosphine Oxide Host for High-Efficiency White Organic Light-Emitting Diodes with Extremely Low Operating Voltages and Reduced Efficiency Roll-Off [J].

Han, Chunmiao ;

Xie, Guohua ;

Xu, Hui ;

Zhang, Zhensong ;

Xie, Linghai ;

Zhao, Yi ;

Liu, Shiyong ;

Huang, Wei .

ADVANCED MATERIALS, 2011, 23 (21) :2491-+

[6] A multifunctional iridium-carbazolyl orange phosphor for high-performance two-element WOLED exploiting Exciton-Managed fluorescence/phosphorescence [J].

Ho, Cheuk-Lam ;

Wong, Wai-Yeung ;

Wang, Qi ;

Ma, Dongge ;

Wang, Lixiang ;

Lin, Zhenyang .

ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (06) :928-937

[7] Phenylcarbazole-Based Phosphine Oxide Host Materials For High Efficiency In Deep Blue Phosphorescent Organic Light-Emitting Diodes [J].

Jeon, Soon Ok ;

Yook, Kyoung Soo ;

Joo, Chul Woong ;

Lee, Jun Yeob .

ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (22) :3644-3649

[8] High Quantum Efficiency in Solution and Vacuum Processed Blue Phosphorescent Organic Light Emitting Diodes Using a Novel Benzofuropyridine-Based Bipolar Host Material [J].

Lee, Chil Won ;

Lee, Jun Yeob .

ADVANCED MATERIALS, 2013, 25 (04) :596-600

[9] Correlation of charge trapping and charge transport properties of blue triplet emitters with device performances of blue phosphorescent organic light-emitting diodes [J].

Park, Hyun Jin ;

Kim, Oh Young ;

Lee, Jun Yeob .

SYNTHETIC METALS, 2013, 176 :47-50

[10] Harvesting triplet excitons from fluorescent blue emitters in white organic light-emitting diodes [J].

Schwartz, Gregor ;

Pfeiffer, Martin ;

Reineke, Sebastian ;

Walzer, Karsten ;

Leo, Karl .

ADVANCED MATERIALS, 2007, 19 (21) :3672-+

← 1 2 →