Molecular Design and Device Performance of Thermally Activated Delayed Fluorescent Polymer Materials

Lei Hua; Shou-ke Yan; Zhong-jie Ren

doi:10.11777/j.issn1000-3304.2020.19224

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Molecular Design and Device Performance of Thermally Activated Delayed Fluorescent Polymer Materials

更新时间：2021-01-26

- Molecular Design and Device Performance of Thermally Activated Delayed Fluorescent Polymer Materials
- Acta Polymerica Sinica Vol. 51, Issue 5, Pages: 457-468(2020)
- 作者机构：
  
  1.北京化工大学材料科学与工程学院化工资源有效利用国家重点实验室　北京 100029
  2.青岛科技大学橡塑材料与工程教育部重点实验室　青岛 266042
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2020.19224
  CLC：
- Published：2020-5，
  
  Published Online：15 April 2020，
  
  Received：30 December 2019，
  
  Revised：17 January 2020，
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Lei Hua, Shou-ke Yan, Zhong-jie Ren. Molecular Design and Device Performance of Thermally Activated Delayed Fluorescent Polymer Materials. [J]. Acta Polymerica Sinica 51(5):457-468(2020)
DOI：

Lei Hua, Shou-ke Yan, Zhong-jie Ren. Molecular Design and Device Performance of Thermally Activated Delayed Fluorescent Polymer Materials. [J]. Acta Polymerica Sinica 51(5):457-468(2020) DOI： 10.11777/j.issn1000-3304.2020.19224.

摘要

聚合物热激活延迟荧光(TADF)材料应用于有机发光二极管(OLEDs)中以来，取得了飞速发展，迄今为止已经报道了多种不同分子结构及性能优异的聚合物TADF发光材料. 它们具有不含重金属的化学结构、100%的理论内量子效率和易于通过溶液加工进行大面积制造的优势. 本文从分子结构和发光颜色2个角度总结了不同结构TADF聚合物的研究进展，重点介绍了我们课题组在长链型TADF聚合物设计与OLEDs器件性能方面的研究工作，探究TADF聚合物颜色调控与效率提升的途径，论述了TADF聚合物存在的问题与未来发展.

Abstract

Thermally activated delayed fluorescence (TADF) polymer materials have achieved rapid development since their application in organic light emitting diodes (OLEDs). So far

various TADF polymer materials with different molecular structures and excellent properties have been reported

of which external quantum efficiency of OLEDs have achieved 23.5%. They possess all-organic chemical structures without heavy metals

100% theoretical internal quantum efficiency

and the advantages of large-area manufacturing by solution process. Nevertheless

when using polymers to develop low-cost display or device

there are still many problems to be overcome

such as

the lower quantum efficiency compared to small molecules

efficiency roll-off at high brightness

and poor device stability. In addition

the efficiency development of devices with different colors of light is obviously uneven and the efficiency of high-color purity devices is poor. Herein

we summarize the research progresses of TADF polymers with different structures and discuss the efficiency development of three primary colors and white OLEDs devices. The emphasis of this review is especially focused on our research work on linear TADF polymers design and their LOEDs device performance

and summarizes our research on TADF polymer color tuning and efficiency inprovement. In addition

the problems and future development of TADF polymers were also discussed in the end.

关键词

热激活延迟荧光聚合物溶液加工有机发光二极管

Keywords

Thermally activated delayed fluorescencePolymerSolution processingOrganic light-emitting diodes

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