AVS 59th Annual International Symposium and Exhibition
    Graphene and Related Materials Focus Topic Wednesday Sessions
       Session GR+AS+BI+PS+SS-WeM

Paper GR+AS+BI+PS+SS-WeM9
Controlling the Spatial Distribution of Graphene Chemistry

Wednesday, October 31, 2012, 10:40 am, Room 13

Session: Graphene Surface Chemistry, Functionalization, Biological and Sensor Applications
Presenter: S.C. Hernández, Naval Research Laboratory
Authors: S.C. Hernández, Naval Research Laboratory
E.H. Lock, Naval Research Laboratory
S.G. Walton, Naval Research Laboratory
C.J. Bennett, Naval Research Laboratory
R. Stine, Naval Research Laboratory
P.E. Sheehan, Naval Research Laboratory
F.J. Bezares, Naval Research Laboratory
L.O. Nyakiti, Naval Research Laboratory
R.L. Myers-Ward, Naval Research Laboratory
J.T. Robinson, Naval Research Laboratory
J.D. Caldwell, Naval Research Laboratory
C.R. Eddy, Jr., Naval Research Laboratory
D.K. Gaskill, Naval Research Laboratory
Correspondent: Click to Email
Graphene has attracted a widespread of interest because of its unique structural and electronic properties however, manipulation of these properties is necessary before realizing its full potential as the next generation material in a broad range of applications. Precise control of the surface chemistry of graphene can allow for subsequent surface procedures both for device fabrication (i.e. atomic layer deposition) and sensor applications. Chemical composition strongly impacts the electronic properties as well as chemical reactivity, both globally and locally. Electron-beam generated plasmas are capable of imparting a variety of functional group types over a range of coverages with minimal damage to the carbon back bone because of their inherently low ion energies and as such offer a unique approach for large area uniform processing of graphene films with controlled surface chemistry. The ability to manipulate the surface chemistry of this atomically thin material coupled with the capability to regulate the spatial distribution of functional will be discussed. Plasma processing conditions and characteristics, as well as the resulting chemical, structural, and electrical properties of the functionalized graphene will be demonstrated. This work is supported by the Naval Research Laboratory base program.