Sustainable production of highly conductive multilayer graphene ink for wireless connectivity and IoT applications

Kewen Pan, Yangyang Fan, Ting Leng, Jiashen Li, Zhiying Xin, Jiawei Zhang, Ling Hao, John Gallop, Kostya S. Novoselov and Zhirun Hu ()
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Kewen Pan: University of Manchester
Yangyang Fan: University of Manchester
Ting Leng: University of Manchester
Jiashen Li: University of Manchester
Zhiying Xin: University of Manchester
Jiawei Zhang: University of Manchester
Ling Hao: National Physical Laboratory
John Gallop: National Physical Laboratory
Kostya S. Novoselov: University of Manchester
Zhirun Hu: University of Manchester

Nature Communications, 2018, vol. 9, issue 1, 1-10

Abstract: Abstract Printed electronics offer a breakthrough in the penetration of information technology into everyday life. The possibility of printing electronic circuits will further promote the spread of the Internet of Things applications. Inks based on graphene have a chance to dominate this technology, as they potentially can be low cost and applied directly on materials like textile and paper. Here we report the environmentally sustainable route of production of graphene ink suitable for screen-printing technology. The use of non-toxic solvent Dihydrolevoglucosenone (Cyrene) significantly speeds up and reduces the cost of the liquid phase exfoliation of graphite. Printing with our ink results in very high conductivity (7.13 × 104 S m−1) devices, which allows us to produce wireless connectivity antenna operational from MHz to tens of GHz, which can be used for wireless data communication and energy harvesting, which brings us very close to the ubiquitous use of printed graphene technology for such applications.

Date: 2018
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DOI: 10.1038/s41467-018-07632-w

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