Scanning tunneling microscopy study and nanomanipulation of graphene-coated water on mica

Kevin T. He, Joshua D. Wood, Gregory P. Doidge, Eric Pop, Joseph W. Lyding

Research output: Contribution to journalArticle

Abstract

We study interfacial water trapped between a sheet of graphene and a muscovite (mica) surface using Raman spectroscopy and ultrahigh vacuum scanning tunneling microscopy (UHV-STM) at room temperature. We are able to image the graphene-water interface with atomic resolution, revealing a layered network of water trapped underneath the graphene. We identify water layer numbers with a carbon nanotube height reference. Under normal scanning conditions, the water structures remain stable. However, at greater electron energies, we are able to locally manipulate the water using the STM tip.

Original languageEnglish (US)
Pages (from-to)2665-2672
Number of pages8
JournalNano letters
Volume12
Issue number6
DOIs
StatePublished - Jun 13 2012

Keywords

  • Graphene
  • Raman
  • STM
  • atomic resolution
  • mica
  • scanning probe microscopy
  • water

ASJC Scopus subject areas

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

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