Density of States of Single Walled Carbon Nanotubes in Long Energy Range: A Computational Comparative Study

Khurshed A. Shah


This paper reports the density of states (DOS) of chiral (4, 1), armchair (4, 4), and zigzag ((4, 0) single walled carbon nanotubes (SWCNTs) in long energy range by using ab- initio Density Functional Theory (DFT). Our simulation results show the distinguishable features of three types of CNTs in terms density of states (DOS), so that they can be fully exploited in nano-devices. The results are helpful for studying the working principles of the CNT based electronic devices and to design new ones.

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