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Crystallization-induced emission enhancement of alkyl chain-dependent pyrene-based luminogens: Visual detection of nitro-explosives

Yu, Ze-Dong; Cao, Jing-Yi; Li, Hua-Long; Yang, Guang; Zhao, Wen-Xuan; Wang, Chuan-Zeng; Chen, Shu-Hai; Elsegood, Mark R.J.; Redshaw, Carl; Yamato, Takehiko

Authors

Ze-Dong Yu

Jing-Yi Cao

Hua-Long Li

Guang Yang

Wen-Xuan Zhao

Chuan-Zeng Wang

Shu-Hai Chen

Mark R.J. Elsegood

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

Takehiko Yamato



Abstract

In view of the widespread applications and urgent need for efficient blue emitting materials, the synthesis of such materials has seen renewed interest. In the present work, three alkyl chain-dependent blue emitting pyrene-based luminogens were synthesized and characterized. The experimental results show that these luminogens exhibited high photoluminescence efficiency both in solution (>86%) and in the solid state (>35%). Interestingly, 1,3,6,8-tetrakis (pentylphenyl)pyrene (TPPy), as a photoelectric functional material, was endowed with higher quantum yield (72%) and competitiveness due to a remarkable crystallization-induced emission enhancement (CIEE) property. More importantly, TPPy exhibits high sensitivity and selectivity for ortho-nitroaniline (o-NA) with low limit of detection (9.99 × 10−8 M), which is mainly due to the distinctive odd-even effects of the terminal alkyl chain. The results demonstrate that this type of luminogen can potentially be utilized for practical applications in the field of contaminant or explosive detection as a sensitive and portable fluorimeter.

Citation

Yu, Z., Cao, J., Li, H., Yang, G., Zhao, W., Wang, C., …Yamato, T. (2023). Crystallization-induced emission enhancement of alkyl chain-dependent pyrene-based luminogens: Visual detection of nitro-explosives. Journal of Luminescence, 253, Article 119439. https://doi.org/10.1016/j.jlumin.2022.119439

Journal Article Type Article
Acceptance Date Oct 17, 2022
Online Publication Date Oct 20, 2022
Publication Date 2023-01
Deposit Date Oct 21, 2022
Publicly Available Date Oct 21, 2023
Journal Journal of Luminescence
Print ISSN 0022-2313
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 253
Article Number 119439
DOI https://doi.org/10.1016/j.jlumin.2022.119439
Keywords Crystallization-induced emission enhancement; Pyrene chemistry; Nitro-explosives; Sensing properties
Public URL https://hull-repository.worktribe.com/output/4100621