A novel intermediate connector with improved charge generation and separation for large-area tandem white organic lighting devices

被引：61
作者：
Ding, Lei [1 ]
Sun, Yan-Qiu [1 ]
Chen, Hua [1 ]
Zu, Feng-Shuo [1 ]
Wang, Zhao-Kui [1 ]
Liao, Liang-Sheng [1 ]
机构：
[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Jiangsu, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2014年 / 2卷 / 48期
关键词：
EMITTING-DIODES; LAYER;
D O I：
10.1039/c4tc02082k
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An intermediate connector (IC) consisting of lithium (Li) doped 4,7-diphenyl-1,10-phenanthroline (BPhen)/Al/tetrafluoro-tetracyanoquinodimethane (F-4-TCNQ)/1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN) is developed for fabricating tandem white organic light-emitting diodes (WOLEDs). An investigation of the charge generation and separation process in Bphen:Li/Al/F-4-TCNQ/HAT-CN, which is carried out by analysis of the current-voltage and capacitance-voltage characteristics, shows that the proposed IC structure is suitable as a connecting unit in tandem OLEDs. The tandem WOLED based on a silicon compound host material of 10-phenyl-2'-(triphenylsilyl)-10H-spiro [acridine-9,9'-fluorene] (SSTF) with the proposed IC structure exhibits a maximum current efficiency of 159.2 cd A(-1) and a maximum power efficiency of 69.4 lm W-1. For application in large-area OLEDs, a 150 x 150 mm(2) tandem lighting panel with maximum efficiencies of 231.8 cd A(-1) and 52.9 lm W-1, correlated color temperature of 3000 K and Commission International de I'Eclairage (CIE) coordinates of (0.34, 0.45) is also demonstrated.
引用
收藏
页码：10403 / 10408
页数：6
相关论文
共 28 条
[1]   Highly efficient white organic electroluminescent devices based on tandem architecture [J].
Chang, CC ;
Chen, JF ;
Hwang, SW ;
Chen, CH .
APPLIED PHYSICS LETTERS, 2005, 87 (25) :1-3
[2]   Silicon-Based Material with Spiro-Annulated Fluorene/Triphenylamine as Host and Exciton-Blocking Layer for Blue Electrophosphorescent Devices [J].
Chen, Hua ;
Jiang, Zuo-Quan ;
Gao, Chun-Hong ;
Xu, Mei-Feng ;
Dong, Shou-Cheng ;
Cui, Lin-Song ;
Ji, Shun-Jun ;
Liao, Liang-Sheng .
CHEMISTRY-A EUROPEAN JOURNAL, 2013, 19 (35) :11791-11797
[3]   Organic semiconductor heterojunction as charge generation layer in tandem organic light-emitting diodes for high power efficiency [J].
Chen, Yonghua ;
Wang, Qi ;
Chen, Jiangshan ;
Ma, Dongge ;
Yan, Donghang ;
Wang, Lixiang .
ORGANIC ELECTRONICS, 2012, 13 (07) :1121-1128
[4]   High power efficiency tandem organic light-emitting diodes based on bulk heterojunction organic bipolar charge generation layer [J].
Chen, Yonghua ;
Chen, Jiangshan ;
Ma, Dongge ;
Yan, Donghang ;
Wang, Lixiang ;
Zhu, Furong .
APPLIED PHYSICS LETTERS, 2011, 98 (24)
[5]  
D'Andrade B.-W., 2008, P SOC PHOTO-OPT INS, V143, P70510
[6]   Tandem organic light-emitting diodes with KBH4 doped 9,10-bis(3-(pyridin-3-yl)phenyl)anthracene connected to the charge generation layer [J].
Duan, Lian ;
Tsuboi, Taiju ;
Qiu, Yong ;
Li, Yanrui ;
Zhang, Guohui .
OPTICS EXPRESS, 2012, 20 (13) :14564-14572
[7]   Enhanced Hole Injection in Phosphorescent Organic Light-Emitting Diodes by Thermally Evaporating a Thin Indium Trichloride Layer [J].
Gao, Chun-Hong ;
Cai, Shi-Duan ;
Gu, Wei ;
Zhou, Dong-Ying ;
Wang, Zhao-Kui ;
Liao, Liang-Sheng .
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (10) :5211-5216
[8]   White Organic Light-Emitting Diodes [J].
Gather, Malte C. ;
Koehnen, Anne ;
Meerholz, Klaus .
ADVANCED MATERIALS, 2011, 23 (02) :233-248
[9]  
Ide N., 2006, P SOC PHOTO-OPT INS, V6333, P63330
[10]   Air-Operable, High-Mobility Organic Transistors with Semifluorinated Side Chains and Unsubstituted Naphthalenetetracarboxylic Diimide Cores: High Mobility and Environmental and Bias Stress Stability from the Perfluorooctylpropyl Side Chain [J].
Jung, Byung Jun ;
Lee, Kyusang ;
Sun, Jia ;
Andreou, Andreas G. ;
Katz, Howard E. .
ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (17) :2930-2944
123