title: Electrically controlled adsorption of oxygen in bilayer graphene devices.
abstract: We investigate the chemisorptions of oxygen molecules on bilayer graphene (BLG) and its electrically modified charge-doping effect using conductivity measurement of the field effect transistor channeled with BLG. We demonstrate that the change of the Fermi level by manipulating the gate electric field significantly affects not only the rate of molecular adsorption but also the carrier-scattering strength of adsorbed molecules. Exploration of the charge transfer kinetics reveals the electrochemical nature of the oxygen adsorption on BLG.
authors.affiliation: Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Sato
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Takai
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Enoki