A Study on the Phosphorescent Blue Organic Light-Emitting Diodes Using Triplet Exciton Blocking Layer

被引：6

作者：

Lee, Seok Jae ^{[1
]}

Seo, Ji Hyun ^{[1
]}

Seo, Ji Hoon ^{[1
]}

Kim, Gu Young ^{[1
]}

Jin, You Young ^{[1
]}

Kim, Young Kwan ^{[1
]}

机构：

[1] Hongik Univ, Dept Informat Display, Seoul 121791, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 12期

关键词：

Triplet Exciton Blocking Layer; Blue Phosphorescent Organic Light-Emitting Diodes; HIGH-EFFICIENCY; ELECTROPHOSPHORESCENT DEVICES;

D O I：

10.1166/jnn.2009.1654

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We studied the use of N,N'-dicarbazolyl-3,5-benzene (mCP) of the triplet energy level 2.90 eV and p-bis(triphenylsilyly)benzene (UGH2) of the wide triplet energy band gap 3.50 eV as triplet exciton blocking layer (TEBL) to get high efficiency in phosphorescent blue organic light-emitting diodes. Five devices (Devices I similar to V) with different structures were fabricated to investigate the effect of mCP and UGH2 TEBLs on device performances. The maximum quantum efficiencies of devices I, II, III, IV and V were 5.10%, 1.41%, 5.90%, 4.98% and 0.61%, respectively.

引用

页码：7044 / 7047

页数：4

共 50 条

[1] Long lifetime blue phosphorescent organic light-emitting diodes with an exciton blocking layer
Seo, Jeong-A
Jeon, Sang Kyu
Gong, Myoung Seon
Lee, Jun Yeob
Noh, Chang Ho
Kim, Sung Han
[J]. JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (18) : 4640 - 4645
[2] Efficiency improvement of red organic light-emitting diodes using a blue phosphorescent exciton blocking layer
Yook, Kyoung Soo
Lee, Jun Yeob
[J]. JOURNAL OF LUMINESCENCE, 2009, 129 (03) : 300 - 302
[3] High efficiency phosphorescent organic light-emitting diodes using carbazole-type triplet exciton blocking layer
Kim, Sung Hyun
Jang, Jyongsik
Lee, Jun Yeob
[J]. APPLIED PHYSICS LETTERS, 2007, 90 (22)
[4] Effects of Position of Exciton-Blocking Layer on Characteristics of Blue Phosphorescent Organic Light-Emitting Diodes
Rhee, Sang Ho
Kim, Chang Su
Song, Myungkwan
Chung, Kwun-Bum
Ryu, Seung Yoon
[J]. ECS SOLID STATE LETTERS, 2014, 3 (10) : R49 - R52
[5] Solution processed high efficiency blue and white phosphorescent organic light-emitting diodes using a high triplet energy exciton blocking layer
Yook, Kyoung Soo
Lee, Jun Yeob
[J]. ORGANIC ELECTRONICS, 2011, 12 (08) : 1293 - 1297
[6] Improved efficiency and stable lifetime in blue phosphorescent organic light-emitting diodes using a stable exciton blocking layer
Seo, Jeong-A
Gong, Myoung Seon
Jeon, Sang Kyu
Lee, Jun Yeob
Noh, Chang Ho
Kim, Sung Han
[J]. DYES AND PIGMENTS, 2015, 123 : 254 - 256
[7] Efficiency Improvement of Solution Processed Blue Phosphorescent Organic Light-Emitting Diodes Using an Alcohol Soluble Exciton Blocking Layer
Yook, Kyoung Soo
Jeon, Soon Ok
Lee, Jun Yeob
[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2011, 14 (01) : II33 - II35
[8] High-Efficiency White Organic Light-Emitting Diodes Using Blue and Red Phosphorescent Materials with Exciton Blocking Layer
Park, Jung Hyun
Seo, Ji Hoon
Seo, Ji Hyun
Lee, Seok Jae
Koo, Ja Ryong
Yoon, Seung Soo
Lee, Seung Hee
Kim, Young Kwan
[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2008, 8 (09) : 4607 - 4610
[9] Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes
Kim, Sung Hyun
Jang, Jyongsik
Yook, Kyoung Soo
Lee, Jun Yeob
Gong, Myoung-Seon
Ryu, Sangouk
Chang, Gee-Keun
Chang, Ho Jung
[J]. JOURNAL OF APPLIED PHYSICS, 2008, 103 (05)
[10] Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes
Kim, Sung Hyun
Jang, Jyongsik
Yook, Kyoung Soo
Lee, Jun Yeob
Gong, Myoung-Seon
Ryu, Sangouk
Chang, Gee-Keun
Chang, Ho Jung
[J]. Journal of Applied Physics, 2008, 103 (05):

← 1 2 3 4 5 →