The original version of this Article contained an error in the second sentence of the second paragraph of the 'Electrical properties of fluorinated graphene contacts' section of the Results, which incorrectly read 'The mobility was calculated by the Drude model, μ = ne/σ where μ, n, e, and σ are the carrier mobility, carrier density, electron charge, and sheet conductivity, respectively'. The correct version states 'μ = σ/ne ' in place of 'μ = ne/σ '. This has been corrected in both the PDF and HTML versions of the Article.