Electrochemical Bubbling Transfer of Graphene Using a Polymer Support with Encapsulated Air Gap as Permeation Stopping Layer

Figure 4

Raman mapping data of the transferred graphene on SiO₂/Si. In the four panels, D, G, 2D, and 2D/G are plotted. The color bars for the intensities of the D, G, and 2D peaks use arbitrary units. The mapping area is a 10 μm × 11 μm rectangle.