Figure 3: Microscopy characterization of GNRs.
From: Large-scale solution synthesis of narrow graphene nanoribbons
(a,b) AFM images of GNRs deposited on mica. Bottom panel in (b) shows the height profile along the blue line. Scale bars, 500 nm. (c) AFM image of GNRs deposited on a Si/SiO2 substrate. Scale bar, 1 μm. (d) SEM image of GNRs deposited on a Si/SiO2 substrate. Scale bar, 200 nm. (e) STM image of GNRs deposited on an Au (111) single crystal and annealed under vacuum at 40 °C for 20 min inside the STM chamber prior to imaging. The GNR highlighted in green is ~80 nm long. Scale bar, 10 nm. (f) Size distribution of the lengths of individual GNR observed in multiple STM images. (g) STM image showing arrangement of GNRs. Scale bar, 3 nm. In the magnified part one GNR is highlighted in green for the sake of clarity. (h) The proposed structure of a GNR nanobelt. Note that this schematic does not represent the actual lengths of individual GNRs.
