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Aggregation-Induced Emission Luminogens for Direct Exfoliation of 2D Layered Materials in Ethanol

Zhao, Yu; Gao, Wei; Yang, Yibin; Zhang, Haoke; Redshaw, Carl; Feng, Xing; Li, Jingbo; Lam, Jacky W.Y.; Tang, Ben Zhong


Yu Zhao

Wei Gao

Yibin Yang

Haoke Zhang

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Professor Carl Redshaw
Professor of Inorganic Materials Chemistry and REF Lead for Chemistry

Xing Feng

Jingbo Li

Jacky W.Y. Lam

Ben Zhong Tang


© 2020 Wiley-VCH GmbH Aggregation-induced emission (AIE) luminogens are an important type of advanced functional materials with fantastic optical properties and have found potential applications in organic electronics, biochemistry, and molecular imaging. Herein, this article presents a novel application of AIE luminogens (AIEgens) for efficient exfoliation of layered transition metal dichalcogenides (TMDs, such as MoS2 and WSe2). From the 1H NMR spectroscopic analysis, the designed AIEgens can insert into the space between layers of MoS2 in ethanol solution and the dynamic molecular rotation against the weak interactions affords large-scale few-layer MoS2 nanosheets (7–8 layers) with enhanced smoothness. The 3D AIEgens play a significant role in preserving the crystal lattice of MoS2 even at high pressure (>15 GPa). More importantly, the new approach can also be used for exfoliation of WSe2 to achieve large-scale few-layer nanosheets. The present work thus provides a facile and high yielding synthetic method for accessing on a large scale 2D layered materials with enhanced properties for high-technology applications.


Zhao, Y., Gao, W., Yang, Y., Zhang, H., Redshaw, C., Feng, X., …Tang, B. Z. (2020). Aggregation-Induced Emission Luminogens for Direct Exfoliation of 2D Layered Materials in Ethanol. Advanced Materials Interfaces, 7(21), Article 2000795.

Journal Article Type Article
Acceptance Date Jul 23, 2020
Online Publication Date Sep 9, 2020
Publication Date Nov 5, 2020
Deposit Date Dec 8, 2020
Publicly Available Date Sep 10, 2021
Journal Advanced Materials Interfaces
Electronic ISSN 2196-7350
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 7
Issue 21
Article Number 2000795
Keywords 2D layered materials; Aggregation‐induced emission luminogens (AIEgen); Exfoliation; Hydrostatic strain
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©2020 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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