Microfluidization of Graphite and Formulation of Graphene-Based Conductive Inks

Karagiannidis, Panagiotis; Hodge, Stephen; Lombardi, L; Tomarchio, F; Decorde, N; Milana, S; Goykhman, Ilya; Su, Y; Mesite, SV; Johnstone, Duncan; Leary, RK; Midgley, Paul; Pugno, NM; Torrisi, Felice; Ferrari, Andrea

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Authors

Karagiannidis, Panagiotis

Hodge, Stephen

Lombardi, L

Tomarchio, F

Decorde, N

Milana, S

Goykhman, Ilya

Publication Date

2017-03-28

Journal Title

ACS Nano

ISSN

1936-0851

Publisher

American Chemical Society

Volume

Issue

Pages

2742-2755

Language

English

Type

Article

This Version

VoR

Metadata

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Citation

Karagiannidis, P., Hodge, S., Lombardi, L., Tomarchio, F., Decorde, N., Milana, S., Goykhman, I., et al. (2017). Microfluidization of Graphite and Formulation of Graphene-Based Conductive Inks. ACS Nano, 11 (3), 2742-2755. https://doi.org/10.1021/acsnano.6b07735

Abstract

We report the exfoliation of graphite in aqueous solutions under high shear rate [∼ 10$^{8}$ s$^{-1}$] turbulent flow conditions, with a 100% exfoliation yield. The material is stabilized without centrifugation at concentrations up to 100 g/L using carboxymethylcellulose sodium salt to formulate conductive printable inks. The sheet resistance of blade coated films is below ∼2Ω/□. This is a simple and scalable production route for conductive inks for large-area printing in flexible electronics.

Keywords

conducting inks, flexible electronics, graphene, solution processing

Sponsorship

We acknowledge funding from EU Graphene Flagship, ERCs grants Hetero2D, HiGRAPHINK, 3DIMAGEEPSRC, ESTEEM2, BIHSNAM, KNOTOUGH, and SILKENE, EPSRC grants EP/K01711X/1, EP/K017144/1, and EP/N010345/1, a Vice Chancellor award from the University of Cambridge, a Junior Research Fellowship from Clare College and the Cambridge NanoCDT and Graphene Technology CDT. We thank Chris Jones for useful discussions, and Imerys Graphite and Carbon for graphite powders.

Funder references

EPSRC (EP/K01711X/1)

EPSRC (EP/K017144/1)

European Research Council (291522)

European Commission Horizon 2020 (H2020) Societal Challenges (732344)

Embargo Lift Date

2100-01-01

Identifiers

External DOI: https://doi.org/10.1021/acsnano.6b07735

This record's URL: https://www.repository.cam.ac.uk/handle/1810/263401

Rights

Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International

Licence URL: http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/

Except where otherwise noted, this item's licence is described as Attribution 4.0 International