Fig. 3
From: Direct imaging of light-element impurities in graphene reveals triple-coordinated oxygen
Graphitic oxygen substitution. a Unprocessed STEM image of a graphitic oxygen substitution in graphene. b Oxygen atom is sputtered after four frames, leaving a vacancy.c Pristine graphene lattice after the vacancy gets refilled by a carbon atom. d Low-magnification image of the GO sample, where multiple pair configurations and a graphitic substitution is present. e Histogram of intensity distribution of atoms in panel d. Scale bars in panel a–c and in panel d are 0.25 and 1 nm, respectively
