Delicate heterocyclic π-extension in MR-TADF emitters: balancing <i>k</i> <sub>RISC</sub> enhancement and emission narrowing

Herein, a comparative investigation into the π-extension effect on a MR framework was conducted <i>via</i> heteroatom doping engineering. The as-synthesized emitters CzBNNO and CzBNBO both exhibited EQEs > 30%. However, they differ significantly in SRCT/LRCT dominance, which causes distinct discrepancies in spectral broadening and emission peak positions.

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Publication Details

Journal
Physical Chemistry Chemical Physics
Published
2025-12-26
DOI
https://doi.org/10.1039/d5cp04299b
Primary Topic
Organic Light-Emitting Diodes Research
Type
article
Field-Weighted Citation Impact
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article

Delicate heterocyclic π-extension in MR-TADF emitters: balancing k RISC enhancement and emission narrowing

Jieyu Zhou, Shu-Qi Zhang, Jia Yu, Zhangli Cheng et al.
Physical Chemistry Chemical Physics
Organic Light-Emitting Diodes Research
article

Delicate heterocyclic π-extension in MR-TADF emitters: balancing k RISC enhancement and emission narrowing

Jieyu Zhou, Shu-Qi Zhang, Jia Yu, Zhangli Cheng, Wen Gao, Hui Wang, Zhe-Yu Zhu, Jun Ye, Yue Wang, Ling-Wei Qu, Kai Wang, Jie Li
article en

Abstract

Herein, a comparative investigation into the π-extension effect on a MR framework was conducted <i>via</i> heteroatom doping engineering. The as-synthesized emitters CzBNNO and CzBNBO both exhibited EQEs > 30%. However, they differ significantly in SRCT/LRCT dominance, which causes distinct discrepancies in spectral broadening and emission peak positions.

Physical Chemistry Chemical PhysicsVol. 28(3)
Ningbo University (CN), Soochow University (CN)
Affordable and clean energy
Openalex Percentile: Top 42%
Organic Light-Emitting Diodes Research
DOISourceOpenAlex
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