Damaging graphene with ozone treatment: A chemically tunable metal - Insulator transition

Nicolas Leconte, Joël Moser, Pablo Ordejón, Haihua Tao, Aurélien Lherbier, Adrian Bachtold, Francesc Alsina, Clivia M. Sotomayor Torres, Jean Christophe Charlier, Stephan Roche

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111 Citations (Scopus)

Abstract

We present a multiscale ab initio study of electronic and transport properties of two-dimensional graphene after epoxide functionalization via ozone treatment. The orbital rehybridization induced by the epoxide groups triggers a strong intervalley scattering and changes dramatically the conduction properties of graphene. By varying the coverage density of epoxide defects from 0.1 to 4%, charge conduction can be tuned from a diffusive to a strongly localized regime, with localization lengths down to a few nanometers long. Experimental results supporting the interpretation as a metal - insulator transition are also provided. © 2010 American Chemical Society.
Original languageEnglish
Pages (from-to)4033-4038
JournalACS Nano
Volume4
Issue number7
DOIs
Publication statusPublished - 27 Jul 2010

Keywords

  • disordered graphene
  • metal-insulator transition
  • numerical simulation
  • ozone treatment
  • quantum transport

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    Leconte, N., Moser, J., Ordejón, P., Tao, H., Lherbier, A., Bachtold, A., Alsina, F., Sotomayor Torres, C. M., Charlier, J. C., & Roche, S. (2010). Damaging graphene with ozone treatment: A chemically tunable metal - Insulator transition. ACS Nano, 4(7), 4033-4038. https://doi.org/10.1021/nn100537z