Abstract
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.
Highlights
Among one-dimensional nanostructures carbon nanotubes (CNTs)[1,2] are the most explored one and have attracted tremendous interest from both fundamental science and technological perspectives
This paper reports the density of states (DOS) of chiral (4,1), armchair (4,4), and zigzag ((4,0) single-walled carbon nanotubes (SWCNTs) by using ab-initio Density Functional Theory (DFT)
Our simulation results show the distinguishable features of three types of CNTs in terms of density of states (DOS), so that they can be fully exploited in nano-devices
Summary
Among one-dimensional nanostructures carbon nanotubes (CNTs)[1,2] are the most explored one and have attracted tremendous interest from both fundamental science and technological perspectives. This paper reports the density of states (DOS) of chiral (4,1), armchair (4,4), and zigzag ((4,0) single-walled carbon nanotubes (SWCNTs) by using ab-initio Density Functional Theory (DFT). Our simulation results show the distinguishable features of three types of CNTs in terms of density of states (DOS), so that they can be fully exploited in nano-devices.
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