Incorporating hybrid charge transfer within a boron/nitrogen/oxygen-embedded scaffold for efficient yellow electroluminescence

Ji-Hua Tan; Xiao-Long Liu; Yao-Zu Su; Longjiang Xing; Yanping Huo; Jia-Xiong Chen; Zujin Zhao; Wen-Cheng Chen

doi:10.1039/D5CC03874J

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Incorporating hybrid charge transfer within a boron/nitrogen/oxygen-embedded scaffold for efficient yellow electroluminescence

Ji-Hua Tan,

†^a Xiao-Long Liu,

†^a Yao-Zu Su,

^a Longjiang Xing,^a Yanping Huo,

^acd Jia-Xiong Chen,

*^a Zujin Zhao*^b and Wen-Cheng Chen

*^a

Author affiliations

* Corresponding authors

^a School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
E-mail: jiaxchen@gdut.edu.cn, wencchen@gdut.edu.cn

^b State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, P. R. China
E-mail: mszjzhao@scut.edu.cn

^c Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang 515200, P. R. China

^d Analytical & Testing Center, Guangdong University of Technology, Guangzhou 510006, P. R. China

Abstract

A yellow thermally activated delayed fluorescence emitter featuring a distorted boron/nitrogen/oxygen-embedded polycyclic aromatic hydrocarbon is presented. It exhibits hybrid long- and short-range charge transfer character within a rigid framework for narrowed emission bandwidth and mitigating aggregation-caused quenching, enabling an electroluminescent device with an external quantum efficiency of 20.4%.

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DOI: https://doi.org/10.1039/D5CC03874J
Article type: Communication
Submitted: 09 Jul 2025
Accepted: 25 Aug 2025
First published: 29 Aug 2025

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Chem. Commun., 2025,61, 14975-14978

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Incorporating hybrid charge transfer within a boron/nitrogen/oxygen-embedded scaffold for efficient yellow electroluminescence

J. Tan, X. Liu, Y. Su, L. Xing, Y. Huo, J. Chen, Z. Zhao and W. Chen, Chem. Commun., 2025, 61, 14975 DOI: 10.1039/D5CC03874J

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Chemical Communications

Incorporating hybrid charge transfer within a boron/nitrogen/oxygen-embedded scaffold for efficient yellow electroluminescence

Abstract

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Incorporating hybrid charge transfer within a boron/nitrogen/oxygen-embedded scaffold for efficient yellow electroluminescence

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