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

Research output: Contribution to journalArticleResearchpeer-review

117 Citations (Scopus)


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
Issue number7
Publication statusPublished - 27 Jul 2010


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


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