Fig. 4. (a) HRTEM image of 3D GNs, (b) shape index image of 3D GNs from the HRTEM image (c) 3D surface morphology from HRTEM analysis (d) Hill stack plot of 3D GNs from HRTEM analysis; (e) plot profile diagram showing the average thickness of GNs in 3D GNs; (f) directionality histogram of the 3D GNs showing the directional alignment of the GNs within the 3D GNs.
