Physics Journal Club Meeting
“Controllable ambient reduction of Graphene Oxide with nanoscale
and macroscopic electrochemical methods”
Austin Faucett
Figure: Current map of graphene oxide film showing patterning of reducedgraphene oxide lines with conductive atomic force microscopy.
Conversion of graphene oxide to graphene through thermal or chemical reduction treatments is a potential route
to the mass production of graphene. In this work, ambient voltage-induced reduction of graphene oxide (GO) is
performed using conductive atomic force microscopy (C-AFM) on GO thin films and individual GO sheets. In
an effort to identify mechanisms and limitations of the method, conductive reduced graphene oxide (rGO) spots
and lines are patterned with nanoscale resolution. Correlation of the conductivity in rGO spots to voltage pulse
parameters is conjectured to discern reduction kinetics. Macroscopic ambient reduction with removable
electrodes laminated onto GO films is a route towards scalable ambient reduction and patterning of GO. Further
characterization of rGO is proposed to elucidate the role of functional oxygen groups in voltage induced
reduction and improve the physical model of the reduction mechanism.
Friday, February 21, 2014
S2 Bldg. Room 144
Pizza @ Noon
Presentation @ 12:15
There will be a sign-in sheet for all attendees to sign.