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Pyrene-based aggregation-induced emission luminogens (AIEgens) with less colour migration for anti-counterfeiting applications

Wang, Xiaohui; Wang, Lirong; Mao, Xiaoyu; Wang, Qingsong; Mu, Zhongfei; An, Li; Zhang, Wan; Feng, Xing; Redshaw, Carl; Cao, Changyong; Qin, Anjun; Tang, Ben Zhong

Authors

Xiaohui Wang

Lirong Wang

Xiaoyu Mao

Qingsong Wang

Zhongfei Mu

Li An

Wan Zhang

Xing Feng

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

Changyong Cao

Anjun Qin

Ben Zhong Tang



Abstract

Traditional luminescent materials are subject to aggregation-caused quenching, which limits their use for high-technological applications in the solid state. In an attempt to address such issues when using luminescent materials in fluorescent inks, by taking advantage of the aggregation-induced emission (AIE) behaviour, this article presents a set of pyrene-based AIEgens which possess high thermal stability, excellent fluorescence properties, and good biocompatibility. These AIEgens can be utilized as fluorescent inks for anti-counterfeiting applications at ultralow/low concentration (0.004-0.5 wt%) (weightAIEgens : weightbinder= 5 : 125 000-5 : 1000) with slight colour migration (< 27 nm) for different printing substrates. The use of such a fluorescent ink containing pyrene-based AIEgens has extended the scope of application over the range from ultralow to high concentration thereby avoiding the aggregation-caused quenching (ACQ) effect. Additionally, this system would lower the product cost, and be beneficial for the environment. The high-quality fluorescence pattern was found to exhibit good printability on different types of paper by old printing technology (screen printing technology). This work highlights that pyrene-based AIEgens are excellent candidates for use in anti-counterfeiting, and these results have the potential to enrich the practical applications of AIEgens in both academic and industrial fields.

Citation

Wang, X., Wang, L., Mao, X., Wang, Q., Mu, Z., An, L., …Tang, B. Z. (2021). Pyrene-based aggregation-induced emission luminogens (AIEgens) with less colour migration for anti-counterfeiting applications. Journal of Materials Chemistry C, 9(37), 12828-12838. https://doi.org/10.1039/d1tc03022a

Journal Article Type Article
Acceptance Date Aug 4, 2021
Online Publication Date Aug 25, 2021
Publication Date Oct 7, 2021
Deposit Date Aug 25, 2021
Publicly Available Date Mar 29, 2024
Journal Journal of Materials Chemistry C
Print ISSN 2050-7526
Electronic ISSN 2050-7526
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 9
Issue 37
Pages 12828-12838
DOI https://doi.org/10.1039/d1tc03022a
Keywords Materials Chemistry; General Chemistry
Public URL https://hull-repository.worktribe.com/output/3826480

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©2021 The authors. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder




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