Conductivity of Graphene Oxide measured by Atomic Force Microscopy

Copyright Wiley Interscience

Graphene oxide (GO) is a promising precursor for the mass production of graphene. As an important step in this direction, the electrical conductivity of GO has been enhanced by six orders of magnitude, thus closely approaching that of exfoliated graphene. The novel two-step process reported by Cristina Gómez-Navarro and co-workers involves hydrogen reduction and healing by a gaseous carbon feedstock. The inside cover of the December 2009 issue of Advanced Materials shows a snapshot of the crucial second step. The oxidized regions in GO are represented in red, and the blue patches correspond to vacancies.

C.Gomez-Navarro et al. Adv. Mater. 46/2009 .