a AFM images of rGO sheets (left) and rGO sheets decorated with Au nanoparticles (right). The insets show the height profiles at the indicated places. b TEM image of rGO-Au sheet. c SEM image of rGO-Au sheet. The inset shows the view at the edge of rGO-Au sheet.
Dong et al. Nanoscale Res Lett 2011 6:60 doi:10.1007/s11671-010-9806-8