A graphene-based electro-thermochromic textile display

Xiaoqian Ji; Wenwen Liu; Yunjie Yin; Chaoxia Wang; Felice Torrisi

doi:10.1039/D0TC03144E

A graphene-based electro-thermochromic textile display†

Xiaoqian Ji,^ab Wenwen Liu,^a Yunjie Yin,^a Chaoxia Wang

*^a and Felice Torrisi

*^bc

Author affiliations

* Corresponding authors

^a Key Laboratory of Eco-Textile, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi, China
E-mail: wangchaoxia@sohu.com

^b Cambridge Graphene Centre, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK
E-mail: ft242@cam.ac.uk, f.torrisi@imperial.ac.uk

^c Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, 80 Wood Lane, London W12 0BZ, UK

Abstract

Electronic textiles (e textiles) are rapidly emerging as key enablers for wearable electronics. Graphene and 2D materials have played a major role in enabling truly wearable e-textiles. Here we demonstrate a textile-based display using the Joule's heating of a screen-printed, few-layer graphene ink to drive the colour switching of thermochromic polyurethane on a cotton fabric. The average temperature of the few-layer graphene ink on the fabric was voltage-controlled reaching about 43 °C in 45 s at a bias of 12 V and a recovery of <20 s with negligible degradation after several heating/cooling cycles. This is used to demonstrate several electro-thermochromic textile displays, thus representing a breakthrough in e-textiles technology.

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DOI: https://doi.org/10.1039/D0TC03144E
Article type: Paper
Submitted: 03 Jul 2020
Accepted: 01 Oct 2020
First published: 02 Oct 2020
This article is Open Access

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J. Mater. Chem. C, 2020,8, 15788-15794

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A graphene-based electro-thermochromic textile display

X. Ji, W. Liu, Y. Yin, C. Wang and F. Torrisi, J. Mater. Chem. C, 2020, 8, 15788 DOI: 10.1039/D0TC03144E

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Journal of Materials Chemistry C

A graphene-based electro-thermochromic textile display†

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A graphene-based electro-thermochromic textile display

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