Figure 3
From: Quantum Capacitance Extraction for Carbon Nanotube Interconnects
Density of states comparison of a (5,5) isolated SWNT vs. a (5,5) SWNT bundle. Note the enhanced density of states at the Fermi level. The Fermi levels of both plots are centered on 0 eV. This increased density of states will yield a higher quantum capacitance per unit volume for a bundle when compared to its constituent individual tube