以1,3-茚二酮为电子受体的热激活延迟荧光分子的合成及其在有机发光二极管中的应用

doi:10.7517/j.issn.1674-0475.2017.04.030

影像科学与光化学 ›› 2017, Vol. 35 ›› Issue (5): 698-711.DOI: 10.7517/j.issn.1674-0475.2017.04.030

以1,3-茚二酮为电子受体的热激活延迟荧光分子的合成及其在有机发光二极管中的应用

陈冬阳^1,2, 刘伟^1,4, 王凯^1,2, 郑才俊³, 张晓宏¹

1. 苏州大学功能纳米与软物质研究院, 江苏苏州 215123;
2. 中国科学院理化技术研究所, 北京 100190;
3. 电子科技大学光电信息学院, 四川成都 611731;
4. 北京理工大学材料学院, 北京 100081

收稿日期:2017-05-28 修回日期:2017-06-12 出版日期:2017-09-15 发布日期:2017-09-15
通讯作者: 张晓宏
基金资助:
国家重点研发计划项目（2016YFB0401002）、国家自然科学基金项目（51533005）、优势学科和青蓝工程项目资助

Synthesis and Application in Organic Light Emitting Diodes of Thermally Activated Delayed Fluorescence Molecules Based on 1,3-Indione as Acceptor

CHEN Dongyang^1,2, LIU Wei^1,4, WANG Kai^1,2, ZHENG Caijun³, ZHANG Xiaohong¹

1. Institute of Functional Nano & Soft Materials, Soochow University, Suzhou 215123, Jiangsu, P. R. China;
2. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;
3. School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, P. R. China;
4. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China

Received:2017-05-28 Revised:2017-06-12 Online:2017-09-15 Published:2017-09-15

摘要/Abstract

摘要：

本文设计合成了一种新型电子受体2，2-二甲基-1，3-茚二酮，并将其应用于热激活延迟荧光（TADF）分子的设计中，合成了一系列具有不同发光性能的TADF分子：5-二甲基吖啶基-2，2-二甲基-1，3-茚二酮（IDYD），5-吩噁嗪基-2，2-二甲基-1，3-茚二酮（IDPXZ）和5，6-二吩噁嗪基-2，2-二甲基-1，3-茚二酮（ID2PXZ）。以IDYD为客体掺杂制备得到蓝光OLED器件，其CIE值为（0.27，0.31），最大外量子效率（EQE）为2.13%。以IDPXZ为客体掺杂得到橙光OLED器件，其CIE值为（0.43，0.53），EQE为1.31%。以ID2PXZ为客体掺杂得到黄光OLED器件，其CIE值为（0.41，0.54），EQE为2.55%。上述结果证明了以2，2-二甲基-1，3-茚二酮为电子受体可以得到不同发光颜色的TADF分子，并在全色OLED器件中具有一定应用前景。

关键词: 热激活延迟荧光, 有机发光二极管, 反系间窜越, 能量转移

Abstract:

Novel electron acceptor 2,2-dimethyl-1,3-dione is synthesized and applied for thermally activated delayed fluorescence (TADF) molecular design. We synthesized a series of TADF molecules based on 2,2-dimethyl-1,3-dione with different emission color:IDYD, IDPXZ and ID2PXZ. The organic light emitting diodes (OLEDs) device based on IDYD exhibits blue emission with CIE coordinate of (0.27, 0.31), and the maximum external quantum efficiency (EQE) reaches 2.13%. While the OLEDs device based on IDPXZ exhibits orange emission with CIE coordinate of (0.43,0.53) and the maximum external quantum efficiency (EQE) reaches 1.31%. For the OLEDs device based on ID2PXZ exhibits yellow emission with CIE coordinate of (0.41, 0.54), and the maximum external quantum efficiency (EQE) reaches 2.55%. The results show that 2,2-dimethyl-1,3-indenone can be used as an electron acceptor for TADF molecule design and have a decent prospect in full-color OLEDs devices.

Key words: thermally activated delayed fluorescence, organic light emitting diodes, reverse intersystem crossing, energy transfer

陈冬阳, 刘伟, 王凯, 郑才俊, 张晓宏. 以1,3-茚二酮为电子受体的热激活延迟荧光分子的合成及其在有机发光二极管中的应用[J]. 影像科学与光化学, 2017, 35(5): 698-711.

CHEN Dongyang, LIU Wei, WANG Kai, ZHENG Caijun, ZHANG Xiaohong. Synthesis and Application in Organic Light Emitting Diodes of Thermally Activated Delayed Fluorescence Molecules Based on 1,3-Indione as Acceptor[J]. Imaging Science and Photochemistry, 2017, 35(5): 698-711.

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以1,3-茚二酮为电子受体的热激活延迟荧光分子的合成及其在有机发光二极管中的应用

Synthesis and Application in Organic Light Emitting Diodes of Thermally Activated Delayed Fluorescence Molecules Based on 1,3-Indione as Acceptor

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