Inkjet printing of high conductivity, flexible graphene patterns

Ethan B. Secor, Pradyumna L. Prabhumirashi, Kanan Puntambekar, Michael L. Geier, Mark C. Hersam

Research output: Contribution to journalArticle

377 Citations (Scopus)

Abstract

The ability to print high conductivity, conformal, and flexible electrodes is an important technological challenge in printed electronics, especially for large-area formats with low cost considerations. In this Letter, we demonstrate inkjet-printed, high conductivity graphene patterns that are suitable for flexible electronics. The ink is prepared by solution-phase exfoliation of graphene using an environmentally benign solvent, ethanol, and a stabilizing polymer, ethyl cellulose. The inkjet-printed graphene features attain low resistivity of 4 mΩ·cm after a thermal anneal at 250 °C for 30 min while showing uniform morphology, compatibility with flexible substrates, and excellent tolerance to bending stresses.

Original languageEnglish
Pages (from-to)1347-1351
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume4
Issue number8
DOIs
Publication statusPublished - Apr 18 2013

Keywords

  • carbon
  • electrode
  • electronics
  • exfoliation
  • nanomaterial
  • solution-phase

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Inkjet printing of high conductivity, flexible graphene patterns'. Together they form a unique fingerprint.

  • Cite this