Figure 1
From: Coherence in defect evolution data for the ion beam irradiated graphene
(a) Raman spectra of graphene obtained after He+ ion irradiation for various doses (5 × 1012, 1 × 1013, 5 × 1013 and 1 × 1014 ions/cm2) at energies of 20 (top) and 60 (bottom) keV. (b) I(D)/I(G) for He+ ion irradiation as a function of dose. (c) Raman spectra of graphene after N+ (top) and Kr+ ion irradiation (bottom) for various energies. (d) I(D)/I(G) for N+ and Kr+ ion irradiation as a function of energy.
