Electrically Controlled Adsorption of Oxygen in Bilayer Graphene Devices

Details Electrically Controlled Adsorption of Oxygen in Bilayer Graphene Devices Electrically Controlled Adsorption of Oxygen in Bilayer Graphene Devices

2011-08-09

arxiv.org/abs/1108.2012v1

Nano Lett. 11, 3468-3475 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 6 figures

Scientific paper

10.1021/nl202002p

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. [This document is the unedited Author's version of a Submitted Work that was subsequently accepted for publication in Nano Letters, {\copyright} American Chemical Society after peer review. To access the final edited and published work see http://dx.doi.org/10.1021/nl202002p.]

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