Robust and Flexible Optically Active 2D Membranes Based on Encapsulation of Liquid Crystals in Graphene Oxide Pockets

Abstract

Design and engineering of novel low dimensional metamaterials allow for new applications in membrane technology, aerospace and automotive industries, architecture, robotics, medicine, and textiles. Such materials can be strong, flexible, transparent, and can be assigned with different functionalities. Here, the authors explore the possibility of 2D graphene oxide (GO) surface to guide self-assembly of 4-cyano-4′-pentylbiphenyl (5CB) molecules via multiple hydrogen bonding and their clustering in optically active phases. The encapsulation of 5CB in a 2D geometry and birefringent properties of 5CB are tuned by the regulation of interaction energy between GO surface and 5CB. Chemical reduction of GO-5CB composites results in electrically conductive reduced graphene oxide-5CB membranes which change optical properties in response to Joule heating. The sustainable approach to the design of robust and flexible optically active materials will allow the formation of other metamaterials with different functionalities for advanced applications.

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Item Type:	Article
Authors/Creators:	Chen, M Goh, SM Yang, K Nikitina, AA Chen, S Leng, X Karim, N Hanson, L Gleeson, HF https://orcid.org/0000-0002-7494-2100 Novoselov, KS Andreeva, DV
Copyright, Publisher and Additional Information:	© 2021 Wiley-VCH GmbH. This is the peer reviewed version of the following article: Chen, M., Goh, S. M., Yang, K., Nikitina, A. A., Chen, S., Leng, X., Karim, N., Hanson, L., Gleeson, H. F., Novoselov, K. S., Andreeva, D. V., Robust and Flexible Optically Active 2D Membranes Based on Encapsulation of Liquid Crystals in Graphene Oxide Pockets. Adv. Mater. Interfaces 2021, 8, 2101432, which has been published in final form at https://doi.org/10.1002/admi.202101432. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
Keywords:	5CB; graphene oxide; liquid crystals; membranes; reduced graphene oxide; soft materials; stimuli responsive materials
Dates:	Published: 23 November 2021 Published (online): 27 October 2021 Accepted: 5 October 2021
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Soft Matter Physics (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	14 Oct 2021 10:48
Last Modified:	04 Aug 2023 14:37
Status:	Published
Publisher:	Wiley
Identification Number:	10.1002/admi.202101432
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:179117

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Robust and Flexible Optically Active 2D Membranes Based on Encapsulation of Liquid Crystals in Graphene Oxide Pockets

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