| 具有完美水平取向的红光型热活化延迟荧光材料 |
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| 引用本文： | 曾旋,黄宇薪,龚少龙,殷旭光,李伟恺,肖潇,张宇,曾维轩,吕承翰,李章诚,董秀琴,钟成,吴忠帜,杨楚罗. 具有完美水平取向的红光型热活化延迟荧光材料[J]. SCIENCE CHINA Materials, 2021, 0(4): 920-930 |
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| 作者姓名： | 曾旋 黄宇薪 龚少龙 殷旭光 李伟恺 肖潇 张宇 曾维轩 吕承翰 李章诚 董秀琴 钟成 吴忠帜 杨楚罗 |
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| 作者单位： | Renmin Hospital of Wuhan University;College of Materials Science and Engineering;Department of Electrical Engineering |
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| 基金项目： | the National Natural Science Foundation of China(51873158,51573141,91833304 and 91433201);the National Key R&D Program of China(2016YFB0401002);Shenzhen Science and Technolgy Program(KQTD20170330110107046 and JCYJ20190808151209557);the Key Technological Innovation Program of Hubei Province(2018AAA013);the Natural Science Foundation for Distinguished Young Scholars of Hubei Province(2017CFA033);the support from the Ministry of Science and Technology of Taiwan(MOST 107-2221-E-002-160-MY3 and 108-2221-E-002-148-MY3);the post-doctoral fellowship from the Ministry of Education(MOE)of Taiwan。 |
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| 摘 要： | 如何实现发光材料跃迁偶极矩取向的调控一直是有机发光二极管(OLEDs)领域的巨大挑战之一.本文中,我们基于双位点长轴延伸策略,设计合成了一种线型的热活化延迟荧光(TADF)分子,PhNAI-PMSBA,实现了对跃迁偶极矩取向的选择性调控.由于PhNAI-PMSBA具有显著的水平分子取向,且其分子长轴与跃迁偶极矩取向高度...
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| 关 键 词： | 热活化延迟荧光 外量子效率 发光材料 输出效率 光耦合 分子取向 发光薄膜 跃迁偶极矩 |
Rational design of perfectly oriented thermally activated delayed fluorescence emitter for efficient red electroluminescence |
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| Xuan Zeng,Yu-Hsin Huang,Shaolong Gong,Xuguang Yin,Wei-Kai Lee,Xiao Xiao,Yu Zhang,Weixuan Zeng,Chen-Han Lu,Chang-Cheng Lee,Xiu-Qin Dong,Cheng Zhong,Chung-Chih Wu,Chuluo Yang. Rational design of perfectly oriented thermally activated delayed fluorescence emitter for efficient red electroluminescence[J]. , 2021, 0(4): 920-930 |
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| Authors: | Xuan Zeng Yu-Hsin Huang Shaolong Gong Xuguang Yin Wei-Kai Lee Xiao Xiao Yu Zhang Weixuan Zeng Chen-Han Lu Chang-Cheng Lee Xiu-Qin Dong Cheng Zhong Chung-Chih Wu Chuluo Yang |
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| Affiliation: | (Renmin Hospital of Wuhan University,Department of Chemistry,Hubei Key Lab on Organic and Polymeric Optoelectronic Materials,Wuhan University,Wuhan 430072;College of Materials Science and Engineering,Shenzhen University,Shenzhen 518060;Department of Electrical Engineering,Graduate Institute of Electronics Engineering and Graduate Institute of Photonics and Optoelectronics,Taiwan University,Taipei 10617) |
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| Abstract: | How to control the dipole orientation of organic emitters is a challenge in the field of organic light-emitting diodes(OLEDs).Herein,a linear thermally activated delayed fluorescence(TADF)molecule,PhNAI-PMSBA,bearing a 1,8-naphthalimide-acridine framework was designed by a doublesite long-axis extension strategy to actively control the dipole orientation.The horizontal ratio of emitting dipole orientation of PhNAI-PMSBA reaches 95%,substantially higher than that of isotropic emitters(67%).This unique feature is associated with the intrinsically horizontal molecular orientation of PhNAI-PMSBA and the good agreement between its transition dipole moment direction and molecular long axis.The PhNAI-PMSBA-based OLED achieves an ultrahigh optical outcoupling efficiency of 43.2%and thus affords one of the highest red electroluminescence with an external quantum efficiency of 22.3%and the Commission International de l’Eclairage 1931 coordinates at around(0.60,0.40). |
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| Keywords: | organic light-emitting diodes thermally activated delayed fluorescence dipole orientation outcoupling efficiency |
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