Flexible graphene-based chemical sensors on paper substrates

Gwangseok Yang, Chongmin Lee, Jihyun Kim, Fan Ren, Stephen J. Pearton

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

Graphene-based, flexible NO2 sensors on paper substrates exhibited an immediate response (32-39%) once exposed to 200 ppm NO2 gas under a strain of 0.5%. Chemical vapor deposition-grown graphene with a supporting poly(methyl methacrylate) layer was transferred onto paper substrates, followed by formation of two electrodes using silver paste. Current-voltage characteristics and dynamic sensing response were obtained under both relaxed and strained conditions. We demonstrate a facile method without complex photo-lithography and high vacuum processes for fabricating graphene-based flexible NO2 sensors on paper substrates with high sensing response.

Original languageEnglish
Pages (from-to)1798-1801
Number of pages4
JournalPhysical Chemistry Chemical Physics
Volume15
Issue number6
DOIs
Publication statusPublished - 2013 Feb 14

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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