PERSPECTIVE

A perspective on boron-based multiple resonance narrowband emitters and devices

  • Mingxu Du ,
  • Jianping Zhou ,
  • Xiaofeng Luo ,
  • Lian Duan ,
  • Dongdong Zhang
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  • 1. Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China;
    2. Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, China

Received date: 2023-10-14

  Revised date: 2024-02-14

  Accepted date: 2024-02-19

  Online published: 2024-07-23

Supported by

This work was supported by the National Natural Science Foundation of China (Grant Nos. 52222308 and 22135004), the Guangdong Major Project of Basic and Applied Basic Research (Grant No. 2019B030302009) and the Guangdong Basic and Applied Basic Research Foundation (Grant No. 2021B1515120041), China Postdoctoral Science Foundation (Grant No. 043260519).

Abstract

Boron-based multiple resonance thermally activated delayed fluorescent (MR-TADF) emitters have shown great promises for applications in high-definition displays. This class of heteroatom-doped nanographene materials typically show very narrow-band emission, small singlet-triplet split (ΔEST) values, high Photoluminescence quantum yield, quality chemical and thermal stabilities. Undoubtedly, boron-based MR-TADF emitters hold a leading position in satisfying the wide-color gamut standard of BT. 2020 (The International Telecommunication Union announced a new color gamut standard of broadcast service television for ultra-high-definition TV in 2012). Thus, the development of novel boron-based MR-TADF emitters attracted a great deal of attention from both academia and industry. Here, a comprehensive overview of the latest advances in boron-based MR-TADF emitters is presented, therein, rational strategies for molecular designs, as well as the consequent optical behavior and efficiency and lifetime improvement in organic light-emitting diodes (OLED) devices are discussed. Finally, the challenges as well as some future research directions to unlock the full potential of this fascinating class of materials are provided.

Cite this article

Mingxu Du , Jianping Zhou , Xiaofeng Luo , Lian Duan , Dongdong Zhang . A perspective on boron-based multiple resonance narrowband emitters and devices[J]. Moore and More, 2025 , 1(1) : 79 -98 . DOI: 10.1007/s44275-024-00006-z

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