Graphene Wrinkles Enable Spatially Defined Chemistry

Shikai Deng, Dongjoon Rhee, Won Kyu Lee, Songwei Che, Bijentimala Keisham, Vikas Berry, Teri W. Odom

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper reports a scalable approach to achieve spatially selective graphene functionalization using multiscale wrinkles. Graphene wrinkles were formed by relieving the strain in thermoplastic polystyrene substrates conformally coated with fluoropolymer and graphene skin layers. Chemical reactivity of a fluorination process could be tuned by changing the local curvature of the graphene nanostructures. Patterned areas of graphene nanowrinkles and crumples followed by a single-process plasma reaction resulted in substrates with regions having different fluorination levels. Notably, conductivity of the functionalized graphene nanostructures could be locally tuned as a function of feature size without affecting the mechanical properties.

Original languageEnglish
Pages (from-to)5640-5646
Number of pages7
JournalNano letters
Volume19
Issue number8
DOIs
Publication statusPublished - Aug 14 2019

Keywords

  • Graphene functionalization
  • crumples
  • lateral heterostructure
  • multiscale wrinkles
  • spatially defined properties

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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  • Cite this

    Deng, S., Rhee, D., Lee, W. K., Che, S., Keisham, B., Berry, V., & Odom, T. W. (2019). Graphene Wrinkles Enable Spatially Defined Chemistry. Nano letters, 19(8), 5640-5646. https://doi.org/10.1021/acs.nanolett.9b02178