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Improved aggregation-induced emission behavior in D-π-A architectures by modifying the donor units

Cao, Jing Yi; Yang, Guang; Xue, Zeng Min; Zhao, Wen Xuan; Chen, Shu Hai; Lin, Hong Tao; Yamato, Takehiko; Redshaw, Carl; Gu, Dan Yu; Wang, Chuan Zeng

Authors

Jing Yi Cao

Guang Yang

Zeng Min Xue

Wen Xuan Zhao

Shu Hai Chen

Hong Tao Lin

Takehiko Yamato

Profile image of Carl Redshaw

Professor Carl Redshaw C.Redshaw@hull.ac.uk
Professor of Inorganic Materials Chemistry and REF Lead for Chemistry

Dan Yu Gu

Chuan Zeng Wang



Abstract

With the development of aggregation-induced emission (AIE) in optoelectronic devices, stimulus-responsive sensors, optical storage and bioimaging, the design and synthesis of efficient AIE luminogens remains a challenge. Herein, a series of asymmetric pyrene derivatives were prepared by stepwise functionalization at the 1-, 3-positions using traditional reactions. The experimental results show that a promising white-light emitting material (Commission Internationale de L'Eclairage (CIE): x = 0.32, y = 0.31), namely TPxzPy, which has completely separated the highest occupied molecular orbital (HOMOs) and lowest unoccupied molecular orbital (LUMOs) distribution, was produced. Moreover, a new strategy was established to construct pyrene-based AIE luminogens along the short axis. All compounds exhibited higher emission efficiency in the solid or aggregated state versus in solution, especially for TTPaPy with a competitive photoluminescence quantum yield as high as 76.2 %. The present work provides a feasible strategy to construct pyrene-based AIE materials for optoelectronic devices.

Citation

Cao, J. Y., Yang, G., Xue, Z. M., Zhao, W. X., Chen, S. H., Lin, H. T., Yamato, T., Redshaw, C., Gu, D. Y., & Wang, C. Z. (2023). Improved aggregation-induced emission behavior in D-π-A architectures by modifying the donor units. Dyes and pigments : an international journal, 220, Article 111758. https://doi.org/10.1016/j.dyepig.2023.111758

Journal Article Type Article
Acceptance Date Oct 11, 2023
Online Publication Date Oct 13, 2023
Publication Date Dec 1, 2023
Deposit Date Oct 23, 2023
Publicly Available Date Oct 14, 2024
Journal Dyes and Pigments
Print ISSN 0143-7208
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 220
Article Number 111758
DOI https://doi.org/10.1016/j.dyepig.2023.111758
Keywords Process Chemistry and Technology; General Chemical Engineering
Public URL https://hull-repository.worktribe.com/output/4423688

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