Figure 3From: Raman enhancement by graphene-Ga2O3 2D bilayer filmFESEM images and EDS mapping and analysis. (a) FESEM image of 2D Ga2O3-2D graphene composite, (b) the EDS mapping of element C, (c) combination of morphology and element C distribution, (d) and (e) EDS mappings of elements Ga and O, respectively, and (f) EDS element analysis. The scale bar is 50 μm.Back to article page