Effect of Catalyst Morphology on the Quality of CVD Grown Graphene
Figure 4
Graphene morphology upon acid etching. (a) and (b) Optical microscope images of graphene grown on (a) Cu foil with 1 min acid (TFB) treated and (b) 20 mins acid (TFB) treated Cu foil. (c) Raman spectra of dark and bright regions as indicated (inset: difference of spectra).
