Thermally Activated Delayed Fluorescence in Polymers: A New Route toward Highly Efficient Solution Processable OLEDs

被引:193
作者
Nikolaenko, Andrey E. [1 ]
Cass, Michael [1 ]
Bourcet, Florence [1 ]
Mohamad, David [1 ]
Roberts, Matthew [1 ]
机构
[1] Cambridge Display Technol Ltd, Unit 12, Godmanchester PE29 2XG, England
关键词
LIGHT-EMITTING-DIODES; ELECTROLUMINESCENT DEVICES; CUPROUS COMPLEXES; PHOSPHORESCENCE; EMITTERS; HOST;
D O I
10.1002/adma.201501090
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Efficient intermonomer thermally activated delayed fluorescence is demonstrated for the first time, opening a new route to achieving high-efficiency solution processable polymer light-emitting device materials. External quantum efficiency (EQE) of up to 10% is achieved in a simple fully solution-processed device structure, and routes for further EQE improvement identified.
引用
收藏
页码:7236 / +
页数:6
相关论文
共 29 条
[1]   Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].
Adachi, C ;
Baldo, MA ;
Thompson, ME ;
Forrest, SR .
JOURNAL OF APPLIED PHYSICS, 2001, 90 (10) :5048-5051
[2]  
[Anonymous], 2013, SID DIG TECH PAP
[3]   Highly efficient phosphorescent emission from organic electroluminescent devices [J].
Baldo, MA ;
O'Brien, DF ;
You, Y ;
Shoustikov, A ;
Sibley, S ;
Thompson, ME ;
Forrest, SR .
NATURE, 1998, 395 (6698) :151-154
[4]   Highly efficient cuprous complexes with thermally activated delayed fluorescence and simplified solution process OLEDs using the ligand as host [J].
Chen, Xu-Lin ;
Lin, Chen-Sheng ;
Wu, Xiao-Yuan ;
Yu, Rongming ;
Teng, Teng ;
Zhang, Qi-Kai ;
Zhang, Qing ;
Yang, Wen-Bing ;
Lu, Can-Zhong .
JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (06) :1187-1195
[5]   Rational Design of Strongly Blue-Emitting Cuprous Complexes with Thermally Activated Delayed Fluorescence and Application in Solution-Processed OLEDs [J].
Chen, Xu-Lin ;
Yu, Rongmin ;
Zhang, Qi-Kai ;
Zhou, Liu-Jiang ;
Wu, Ciao-Yuan ;
Zhang, Qing ;
Lu, Can-Zhong .
CHEMISTRY OF MATERIALS, 2013, 25 (19) :3910-3920
[6]   High Efficiency in a Solution-Processed Thermally Activated Delayed-Fluorescence Device Using a Delayed-Fluorescence Emitting Material with Improved Solubility [J].
Cho, Yong Joo ;
Yook, Kyoung Soo ;
Lee, Jun Yeob .
ADVANCED MATERIALS, 2014, 26 (38) :6642-6646
[7]   Triplet Harvesting with 100% Efficiency by Way of Thermally Activated Delayed Fluorescence in Charge Transfer OLED Emitters [J].
Dias, Fernando B. ;
Bourdakos, Konstantinos N. ;
Jankus, Vygintas ;
Moss, Kathryn C. ;
Kamtekar, Kiran T. ;
Bhalla, Vandana ;
Santos, Jose ;
Bryce, Martin R. ;
Monkman, Andrew P. .
ADVANCED MATERIALS, 2013, 25 (27) :3707-3714
[8]   Efficient up-conversion of triplet excitons into a singlet state and its application for organic light emitting diodes [J].
Endo, Ayataka ;
Sato, Keigo ;
Yoshimura, Kazuaki ;
Kai, Takahiro ;
Kawada, Atsushi ;
Miyazaki, Hiroshi ;
Adachi, Chihaya .
APPLIED PHYSICS LETTERS, 2011, 98 (08)
[9]   Thermally Activated Delayed Fluorescence from Sn4+-Porphyrin Complexes and Their Application to Organic Light-Emitting Diodes - A Novel Mechanism for Electroluminescence [J].
Endo, Ayataka ;
Ogasawara, Mai ;
Takahashi, Atsushi ;
Yokoyama, Daisuke ;
Kato, Yoshimine ;
Adachi, Chihaya .
ADVANCED MATERIALS, 2009, 21 (47) :4802-+
[10]   Invited paper: Solution processing of small-molecule OLEDs [J].
Feehery, William F. .
2007 SID INTERNATIONAL SYMPOSIUM, DIGEST OF TECHNICAL PAPERS, VOL XXXVIII, BOOKS I AND II, 2007, 38 :1834-1836