Fig. 1
From: In situ topographical chemical and electrical imaging of carboxyl graphene oxide at the nanoscale
Schematic diagram of the experimental setup. The side illumination AFM-TERS setup used in this work. Au coated AFM probe in combination with 638 nm excitation laser is used for in situ topographical, chemical and electrical nanoscopy of a GO–COOH sample. Scanning electron microscopy (SEM) image of a representative Au coated TERS probe is shown inset. Scale bar: 100 nm
