2008/03/13 by J. Moser, A. Verdaguer, D. Jimenez +3 · 3 citations
Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Force Microscopy Techniques and Applications #Graphene research and applications #cond-mat.other
paper · pdf · doi:10.1063/1.2898501
to be published in Applied Physics Letters
arxiv created 2008/03/13 · openalex publication_date 2008/03/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We employ electrostatic force microscopy to study the electrostatic environment of graphene sheets prepared with the micromechanical exfoliation technique. We detect the electric dipole of residues left from the adhesive tape during graphene preparation, as well as the dipole of water molecules adsorbed on top of graphene. Water molecules form a dipole layer that can generate an electric field as large as ∼109Vm−1. We expect that water molecules can significantly modify the electrical properties of graphene devices.