Fig. 3: Distribution of proton currents through GO membranes.
From: Proton and molecular permeation through the basal plane of monolayer graphene oxide
a Statistical distribution of the proton current values measured over the entire scanned area in panel b. Right inset, similar statistics for a similar device where, instead of GO, pristine graphene was used11. Left inset, schematic of our SECCM setup. For details, see Supplementary Fig. 5 and Methods. b Example of SECCM maps for monolayer GO. The white circle marks the 2 μm diameter aperture in silicon-nitride. Each pixel is 100 × 100 nm in size.
