期刊
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
卷 54, 期 -, 页码 262-266出版社
ELSEVIER
DOI: 10.1016/j.physe.2013.07.004
关键词
Single-walled carbon nanotube; Ionization potential; DFT; B3LYP
Adiabatic and vertical ionization potentials (IPs) of single-walled carbon nanotubes (SWCNTs) as a function of length were determined by using density functional theory. The correlation between periodic oscillations of SWCNTs local aromaticity and the values of IPs was founded. In the case of short SWCNTs an appreciable gap between vertical and adiabatic IPs was observed, whereas for longer nanotubes these values are almost equal. It was also established that the HOMO electron density distribution in neutral SWCNTs affects on SWCNT lengths upon ionization. (C) 2013 Elsevier B.V. All rights reserved.
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