Figure 3From: Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor depositionRaman analysis of graphene films at different H 2 flow. (a) Raman spectra. (b) Zoom in approximately 2,700 cm-1 peak (2D) region. (c) The FWHM of G and 2D peaks. (d) I2D/IG and ID/IG.Back to article page