Open AccessTransmission of charge ion in Single-walled Carbon Nanotube
Author(s) -
J Charoenpakdee,
Artit Hutem,
S. Boonchui
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/773/1/012030
Subject(s) - carbon nanotube , quantum tunnelling , density functional theory , electron , scattering , reflection (computer programming) , materials science , charge density , ion , electron density , charge (physics) , molecular physics , nanotube , atomic physics , condensed matter physics , nanotechnology , chemistry , computational chemistry , physics , quantum mechanics , optoelectronics , computer science , programming language
In this paper, we investigate the effects of the chiral structure of single-wall carbon nanotube (SWCNT) on the probability that an electron is transmitted (or reflected) through SWCNT. We adopt the charge density calculated by using the density functional theory (DFT) method [New J. Phys. 18 (2016) 023029] to investigate the transmission of an electron through potential barriers from the charge density. We find that the alpha-electron density in SWCNT for the chiral structures (9, 0), (9, 2) and (9, 3) causes resonant tunneling of electrons through potential barriers. For the chiral structures (9, 1), (9, 4) and (9, 5), we obtain transmission and reflection as same as scattering at a finite potential barrier.