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arXiv · 1611.04467

Microfluidization of graphite and formulation of graphene-based conductive inks

P. G. Karagiannidis·S. A. Hodge·L. Lombardi·F. Tomarchio·N. Decorde·S. Milana·I. Goykhman·Y. Su·S. V. Mesite·D. N. Johnstone·R. K. Leary·P. A. Midgley·N. M. Pugno·F. Torrisi·A. C. Ferrari
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Abstract

We report the exfoliation of graphite in aqueous solutions under high shear rate [$\sim10^8s^{-1}$] 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$\sim2\Omega/\square$. This is a simple and scalable production route for graphene-based conductive inks for large area printing in flexible electronics.

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P. G. Karagiannidis, S. A. Hodge, L. Lombardi, F. Tomarchio, N. Decorde, S. Milana, I. Goykhman, Y. Su, S. V. Mesite, D. N. Johnstone, R. K. Leary, P. A. Midgley, N. M. Pugno, F. Torrisi, A. C. Ferrari. 2016-11-11. Microfluidization of graphite and formulation of graphene-based conductive inks. https://doi.org/10.1021/acsnano.6b07735

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