Low-temperature thermal reduction of graphene oxide nanobrick walls: Unique combination of high gas barrier and low resistivity in fully organic polyelectrolyte multilayer thin films

Bart Stevens, Ekaterina Dessiatova, David A. Hagen, Alexander D. Todd, Christopher W. Bielawski, Jaime C. Grunlan

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Layer-by-layer assembly from aqueous solutions was used to construct multilayer thin films (<200 nm) comprising polyethylenimine and graphene oxide. Low-temperature (175 °C) thermal reduction of these films improved gas barrier properties (e.g., lower permeability than SiOx), even under high humidity conditions, and enhanced their electrical conductivity to 1750 S/m. The flexible nature of the aforementioned thin films, along with their excellent combination of transport properties, make them ideal candidates for use in a broad range of electronics and packaging applications.

Original languageEnglish (US)
Pages (from-to)9942-9945
Number of pages4
JournalACS Applied Materials and Interfaces
Volume6
Issue number13
DOIs
StatePublished - Jul 9 2014

Keywords

  • layer-by-layer assembly
  • oxygen barrier
  • reduced graphene oxide
  • sheet resistance
  • thin films

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