通过拓展D⁃π⁃A结构中的π桥实现高效紫蓝光有机发光器件（CIE<italic style="font-style: italic"><sub>y</sub></italic>=0.046）

崔江峰; 孙静; 王国良; 王智恒; 杨晓东; 许慧侠; 苗艳勤; 王龙; 于军胜; 王华

doi:10.37188/CJL.20220093

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通过拓展D⁃π⁃A结构中的π桥实现高效紫蓝光有机发光器件（CIE_y=0.046）

器件制备及器件物理 | 更新时间：2022-08-01

- 通过拓展D⁃π⁃A结构中的π桥实现高效紫蓝光有机发光器件（CIE_y=0.046）
  增强出版
- Achieving Efficient Violet-blue Organic Light Emitting Devices （CIE_y=0.046） by Extending π-conjugation in D-π-A Structure
- 发光学报 2022年43卷第7期页码：1102-1113
- 作者机构：
  
  1.太原理工大学新材料界面科学与工程教育部重点实验室，山西太原　030024
  2.山西⁃浙大先进材料与化学工程研究所，山西太原　030024
  3.电子科技大学光电信息学院电子薄膜与集成器件国家重点实验室，四川成都　610054
- 作者简介：
  
  [ "崔江峰（1995-），男，河北沧州人，硕士研究生，2018年于河北科技大学获得学士学位，主要从事有机光电材料与器件的研究。Email: 1689813420@qq. com" ]
  [ "孙静（1987-），女，山东潍坊人，博士，讲师，2016年于太原理工大学获得博士学位，主要从事有机光电功能材料的研究。Email: sunjing@tyut.edu.cn" ]
  [ "王华（1977-），男，山西平定人，博士，教授，博士生导师，2007 年于太原理工大学获得博士学位，主要从事有机半导体光电材料与器件的研究 Email: wanghua001@tyut.edu.cn" ]
- 基金信息：
  
  国家自然科学基金(62074109;6207031407);山西省自然科学基金(201901D211090;201901D111108);国家自然科学基金联合基金(U21A20492);Research Project Supported by Shanxi Scholarship Council of China(2020⁃049)
- DOI：10.37188/CJL.20220093
  中图分类号： TN312.8
- 纸质出版日期：2022-07-05，
  
  收稿日期：2022-03-18，
  
  修回日期：2022-04-05，
- 稿件说明：
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崔江峰,孙静,王国良等.通过拓展D⁃π⁃A结构中的π桥实现高效紫蓝光有机发光器件（CIE_y=0.046）[J].发光学报,2022,43(07):1102-1113.

CUI Jiang-feng,SUN Jing,WANG Guo-liang,et al.Achieving Efficient Violet-blue Organic Light Emitting Devices （CIE_y=0.046） by Extending π-conjugation in D-π-A Structure[J].Chinese Journal of Luminescence,2022,43(07):1102-1113.
崔江峰,孙静,王国良等.通过拓展D⁃π⁃A结构中的π桥实现高效紫蓝光有机发光器件（CIE_y=0.046）[J].发光学报,2022,43(07):1102-1113. DOI： 10.37188/CJL.20220093.

CUI Jiang-feng,SUN Jing,WANG Guo-liang,et al.Achieving Efficient Violet-blue Organic Light Emitting Devices （CIE_y=0.046） by Extending π-conjugation in D-π-A Structure[J].Chinese Journal of Luminescence,2022,43(07):1102-1113. DOI： 10.37188/CJL.20220093.

摘要

紫蓝光有机发光材料在全彩显示和照明领域具有广阔的应用前景。但是该类材料需要宽能隙，因此开发高效的紫蓝色材料是一项巨大的挑战。本文利用10H⁃吩噻嗪5，5⁃二氧化物（2OPTZ）作为弱受体、N⁃苯基⁃2⁃萘胺（PNA）作为供体，设计合成了两个具有D⁃π⁃A型结构的紫蓝色材料，命名为2OPTZ⁃PNA和2OPTZ⁃BP⁃PNA。通过延长给受体之间的π共轭长度，使局域态和电荷转移态被优化，并且薄膜中的绝对量子产率从14%提高到33%。此外，利用2OPTZ⁃BP⁃PNA制备的非掺杂器件呈现紫蓝光（436 nm）发射，半峰全宽为54 nm，色坐标为（0.155，0.046），外量子效率为4.1%。鉴于此，本文提供了一种制备高质量紫蓝发光材料的有效策略。

Abstract

Organic violet-blue luminescent materials have exhibited great potential in full-color displaying and lighting fields. However， it is a huge challenge to develop efficient violet-blue emitters because of the inherently wide energy gap. In this work， two violet-blue emitters with donor （D）-π-acceptor （A） type using 10H-phenothiazine 5，5-dioxide （2OPTZ） as a weak acceptor and N-（2-naphthyl） aniline （PNA） as the donor， namely 2OPTZ-PNA and 2OPTZ-BP-PNA， were designed and synthesized. By extending π-conjugation length between donor and acceptor， local excited states and charge transfer excited states were adjusted， and absolute photoluminescence quantum yields （PLQYs） values in the evaporated film increased from 14% to 33%. Notably， non-doped device based 2OPTZ-BP-PNA exhibits violet-blue light at 436 nm with a narrow full width at half-maximum （FWHM） of 54 nm， Commission Internationale de l’Eclairage （CIE） coordinates of （0.155， 0.046） and external quantum efficiency （EQE） of 4.1%. Given this， our results provide an efficient design strategy for the high-quality violet-blue luminescent materials.

关键词

有机发光二极管紫蓝色二氧化吩噻嗪D-π-A结构π共轭长度

Keywords

organic light-emitting diodes（OLED）violet-bluephenothiazine dioxideD-π-A structureπ-conjugation length

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通过拓展D⁃π⁃A结构中的π桥实现高效紫蓝光有机发光器件（CIEy=0.046）

Achieving Efficient Violet-blue Organic Light Emitting Devices （CIEy=0.046） by Extending π-conjugation in D-π-A Structure

DOI：10.37188/CJL.20220093

摘要

Abstract

关键词

Keywords

references

通过拓展D⁃π⁃A结构中的π桥实现高效紫蓝光有机发光器件（CIE_y=0.046）

Achieving Efficient Violet-blue Organic Light Emitting Devices （CIE_y=0.046） by Extending π-conjugation in D-π-A Structure