Combustion-Assisted Photonic Annealing of Printable Graphene Inks via Exothermic Binders

Ethan B. Secor, Theodore Z. Gao, Manuel H. Dos Santos, Shay G. Wallace, Karl W. Putz, Mark C. Hersam

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

High-throughput and low-temperature processing of high-performance nanomaterial inks is an important technical challenge for large-area, flexible printed electronics. In this report, we demonstrate nitrocellulose as an exothermic binder for photonic annealing of conductive graphene inks, leveraging the rapid decomposition kinetics and built-in energy of nitrocellulose to enable versatile process integration. This strategy results in superlative electrical properties that are comparable to extended thermal annealing at 350 °C, using a pulsed light process that is compatible with thermally sensitive substrates. The resulting porous microstructure and broad liquid-phase patterning compatibility are exploited for printed graphene microsupercapacitors on paper-based substrates.

Original languageEnglish
Pages (from-to)29418-29423
Number of pages6
JournalACS Applied Materials and Interfaces
Volume9
Issue number35
DOIs
Publication statusPublished - Sep 6 2017

Keywords

  • carbon nanomaterials
  • conductive inks
  • energetic materials
  • intense pulsed light annealing
  • printed electronics

ASJC Scopus subject areas

  • Materials Science(all)

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