Issue 53, 2024
From the journal:

Chemical Communications

A diphenylphosphine oxide decorated multi-resonance TADF emitter for narrowband green electroluminescence with an EQE of 32.4%†

Junjie Dong,a   Yulin Xu,a   Shuni Wang,a   Jingsheng Miao,a   Nengquan Li, ORCID logo a   Zhongyan Huang ORCID logo *a  and  Chuluo Yang ORCID logo a  

* Corresponding authors

a Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, P. R. China
E-mail: zyhuang@szu.edu.cn

Abstract

A new narrowband thermally activated delayed fluorescence emitter, PhCzBN-PO, was developed by incorporating the diphenylphosphine oxide (DPPO) group into a multi-resonance core. The unique properties of DPPO enabled PhCzBN-PO to achieve pure green emission and a nonplanar structure. The resulting electroluminescent devices achieved high external quantum efficiencies up to 32.4% with extremely low efficiency roll-off and pure-green emission with Commission Internationale de L’Eclairage (CIE) coordinates of (0.24, 0.67).

Graphical abstract: A diphenylphosphine oxide decorated multi-resonance TADF emitter for narrowband green electroluminescence with an EQE of 32.4%

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Article information

DOI
https://doi.org/10.1039/D4CC01672F
Article type
Communication
Submitted
10 Apr 2024
Accepted
05 Jun 2024
First published
06 Jun 2024

Chem. Commun., 2024,60, 6789-6792

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A diphenylphosphine oxide decorated multi-resonance TADF emitter for narrowband green electroluminescence with an EQE of 32.4%

J. Dong, Y. Xu, S. Wang, J. Miao, N. Li, Z. Huang and C. Yang, Chem. Commun., 2024, 60, 6789 DOI: 10.1039/D4CC01672F

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