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Microfluidization of Graphite and Formulation of Graphene-Based Conductive Inks

  • Panagiotis G. Karagiannidis
  • , Stephen A. Hodge
  • , Lucia Lombardi
  • , Flavia Tomarchio
  • , Nicolas Decorde
  • , Silvia Milana
  • , Ilya Goykhman
  • , Yang Su
  • , Steven V. Mesite
  • , Duncan N. Johnstone
  • , Rowan K. Leary
  • , Paul A. Midgley
  • , Nicola M. Pugno
  • , Felice Torrisi
  • , Andrea C. Ferrari

Research output: Contribution to journalArticlepeer-review

Abstract

We report the exfoliation of graphite in aqueous solutions under high shear rate [∼ 108 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.

Original languageEnglish GB
Pages (from-to)2742-2755
Number of pages14
JournalACS Nano
Volume11
Issue number3
DOIs
StatePublished - 28 Mar 2017
Externally publishedYes

Keywords

  • conducting inks
  • flexible electronics
  • graphene
  • solution processing

ASJC Scopus subject areas

  • General Materials Science
  • General Engineering
  • General Physics and Astronomy

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