4.8 Article

Microfluidization of Graphite and Formulation of Graphene-Based Conductive Inks

Journal

ACS NANO
Volume 11, Issue 3, Pages 2742-2755

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acsnano.6b07735

Keywords

graphene; solution processing; flexible electronics; conducting inks

Funding

  1. EU
  2. ERC
  3. EPSRC [EP/K01711X/1, EP/K017144/1, EP/N010345/1]
  4. University of Cambridge
  5. Clare College
  6. Cambridge NanoCDT and Graphene Technology CDT
  7. Engineering and Physical Sciences Research Council [EP/N010345/1, EP/K01711X/1, EP/K017144/1] Funding Source: researchfish
  8. EPSRC [EP/N010345/1, EP/K017144/1, EP/K01711X/1] Funding Source: UKRI

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We report the exfoliation of graphite in aqueous solutions under high shear rate [similar to 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 similar to 2 Omega/square. This is a simple and scalable production route for conductive inks for large-area printing in flexible electronics.

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