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. 2012 May 2;3:360–367. doi: 10.3762/bjnano.3.42

Figure 4.

Figure 4

Core-valence-valence (CVV) Auger spectra of MWCNTs (red curve) and HOPG (black curve). An electron gun with a primary beam energy of 1500 eV was used as the exciting source. In the case of the MWCNT sample, the Auger peak is shifted towards lower kinetic energy with respect to HOPG. The Fermi level is at 284.4 eV.