Literature DB >> 23670919

Highly efficient organic light-emitting diode based on a hidden thermally activated delayed fluorescence channel in a heptazine derivative.

Jie Li1, Tetsuya Nakagawa, James MacDonald, Qisheng Zhang, Hiroko Nomura, Hiroshi Miyazaki, Chihaya Adachi.   

Abstract

An orange-red organic light-emitting diode containing a heptazine derivative exhibits high performance with a maximum external quantum efficiency of 17.5 ± 1.3% and a peak luminance of 17000 ± 1600 cd m⁻² without any light out-coupling enhancement. The high electroluminescence performance can be ascribed to the presence of an efficient up-conversion channel from the lowest triplet state to the lowest singlet state.
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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Year:  2013        PMID： 23670919     DOI： 10.1002/adma.201300575

Source DB:  PubMed          Journal:  Adv Mater        ISSN： 0935-9648            Impact factor:   30.849


  27 in total

Review 1.  Reverse intersystem crossing from upper triplet levels to excited singlet: a 'hot excition' path for organic light-emitting diodes.

Authors:  Dehua Hu; Liang Yao; Bing Yang; Yuguang Ma
Journal:  Philos Trans A Math Phys Eng Sci       Date:  2015-06-28       Impact factor: 4.226

2.  Highly efficient blue electroluminescence based on thermally activated delayed fluorescence.

Authors:  Shuzo Hirata; Yumi Sakai; Kensuke Masui; Hiroyuki Tanaka; Sae Youn Lee; Hiroko Nomura; Nozomi Nakamura; Mao Yasumatsu; Hajime Nakanotani; Qisheng Zhang; Katsuyuki Shizu; Hiroshi Miyazaki; Chihaya Adachi
Journal:  Nat Mater       Date:  2014-12-08       Impact factor: 43.841

3.  Acceptor-Donor-Acceptor π-Stacking Boosts Intramolecular Through-Space Charge Transfer towards Efficient Red TADF and High-Performance OLEDs.

Authors:  Chenglin Jiang; Jingsheng Miao; Danwen Zhang; Zhenhua Wen; Chuluo Yang; Kai Li
Journal:  Research (Wash D C)       Date:  2022-06-24

4.  Enhanced Electroluminescence Based on a π-Conjugated Heptazine Derivative by Exploiting Thermally Activated Delayed Fluorescence.

Authors:  Jie Li; Heqi Gong; Jincheng Zhang; Shiyi Zhou; Li Tao; Lihua Jiang; Qiang Guo
Journal:  Front Chem       Date:  2021-05-13       Impact factor: 5.221

5.  Efficient Red Thermally Activated Delayed Fluorescence Emitters Based on a Dibenzonitrile-Substituted Dipyrido[3,2-a:2',3'-c]phenazine Acceptor.

Authors:  Lin He; Xuan Zeng; Weimin Ning; Ao Ying; Yunbai Luo; Shaolong Gong
Journal:  Molecules       Date:  2021-04-22       Impact factor: 4.411

6.  Cool and warm hybrid white organic light-emitting diode with blue delayed fluorescent emitter both as blue emitter and triplet host.

Authors:  Yong Joo Cho; Kyoung Soo Yook; Jun Yeob Lee
Journal:  Sci Rep       Date:  2015-01-19       Impact factor: 4.379

7.  The Role of Local Triplet Excited States and D-A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices.

Authors:  Fernando B Dias; Jose Santos; David R Graves; Przemyslaw Data; Roberto S Nobuyasu; Mark A Fox; Andrei S Batsanov; Tiago Palmeira; Mário N Berberan-Santos; Martin R Bryce; Andrew P Monkman
Journal:  Adv Sci (Weinh)       Date:  2016-07-18       Impact factor: 16.806

8.  Tuning the singlet-triplet energy gap: a unique approach to efficient photosensitizers with aggregation-induced emission (AIE) characteristics.

Authors:  Shidang Xu; Youyong Yuan; Xiaolei Cai; Chong-Jing Zhang; Fang Hu; Jing Liang; Guanxin Zhang; Deqing Zhang; Bin Liu
Journal:  Chem Sci       Date:  2015-07-17       Impact factor: 9.825

9.  Molecular design to regulate the photophysical properties of multifunctional TADF emitters towards high-performance TADF-based OLEDs with EQEs up to 22.4% and small efficiency roll-offs.

Authors:  Ling Yu; Zhongbin Wu; Guohua Xie; Weixuan Zeng; Dongge Ma; Chuluo Yang
Journal:  Chem Sci       Date:  2017-12-13       Impact factor: 9.825

Review 10.  Heptazine-Based π-Conjugated Materials for Light-Emitting.

Authors:  Jie Li; Li Tao; Yanqing Wang; Yali Yao; Qiang Guo
Journal:  Front Chem       Date:  2021-06-18       Impact factor: 5.221
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