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Recent Advances on Thermally Activated Delayed Fluorescence Dendrimers
增强出版- Chinese Journal of Luminescence Vol. 42, Issue 7, Pages: 904-916(2021)
- 作者机构：
1.长春理工大学 材料科学与工程学院，吉林 长春 130022
2.中国科学院长春应用化学研究所 高分子物理与化学国家重点实验室，吉林 长春 130022
- 作者简介：
- 基金信息：Jilin Provincial Science and Technology Development Program(20200801006GH);Jilin Provincial Science and Technology Development Program(20200201235JC);the Education Department of Jilin Province(JJKH20200744KJ)
DOI：10.37188/CJL.20210099
CLC： O482.31Published：01 July 2021，
Received：19 March 2021，
Revised：02 April 2021，
- 稿件说明：
移动端阅览
ZHI-HUA MA, RONG-RONG MA, WEN-YUE DONG, et al. Recent Advances on Thermally Activated Delayed Fluorescence Dendrimers. [J]. Chinese journal of luminescence, 2021, 42(7): 904-916.
ZHI-HUA MA, RONG-RONG MA, WEN-YUE DONG, et al. Recent Advances on Thermally Activated Delayed Fluorescence Dendrimers. [J]. Chinese journal of luminescence, 2021, 42(7): 904-916. DOI： 10.37188/CJL.20210099.
摘要
树枝状发光材料是一类由中心核和外围树枝构成的具有三维空间结构的发光功能材料，既具有有机小分子发光材料明确的化学结构和确定的分子量，又具有高分子发光材料的良好溶液加工性能，是发展低成本、高效率有机电致发光器件的重要材料体系。具有热活化延迟荧光效应的树枝状发光材料能够通过反向系间窜越过程将三线态激子转变为单线态激子而发出荧光，其器件理论内量子效率可以达到100%，是开发设计高效树枝状发光材料的有效途径。近年来，在分子设计方面，树枝状热活化延迟荧光材料取得了重要进展，形成了种类丰富的材料体系，同时其器件性能得到了大幅提升。本文根据树枝状热活化延迟荧光材料的中心核进行分类，围绕其分子设计、光物理特性和器件性能，总结和评述了国内外研究者在该领域的主要研究进展，并分析了其未来发展所面临的机遇和挑战。
Abstract
Dendritic luminescent materials are a kind of three-dimensional(3D) organic optoelectrical functional materials composed of the central core and the dendrons. They are regarded as an important category of organic luminescent materials for the development of cost-effective and high-efficiency organic light emitting devices(OLEDs) because they possess well-defined molecular structure like small molecules and excellent solubility like polymers. Thermally activated delayed fluorescence(TADF) dendrimers-based OLEDs can realize 100% internal quantum efficiency by utilizing triplet excitons through enhanced reverse intersystem crossing process from the lowest triplet state to singlet state. Thus
TADF dendrimers represent a promising approach towards highly efficient dendritic luminescent materials. During these years
significant progress has been made on the molecular design and device performance of TADF dendrimers. In this review
we classify the TADF dendrimers according to their core structure and summarize their research progress with the emphasis on molecular structure
photophysical properties and device performances. Finally
the perspectives and the key challenges on developing TADF dendrimers are discussed.
关键词
热活化延迟荧光树枝状发光材料溶液加工有机电致发光
Keywords
thermally activated delayed fluorescencedendritic luminescent materialssolution processibleorganic light-emitting diodes
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