Vibrational spectra of double-wall carbon nanotubes

2004 ◽  
Vol 69 (23) ◽  
Author(s):  
Minggang Xia ◽  
Shengli Zhang ◽  
Erhu Zhang ◽  
Shumin Zhao ◽  
Xianjun Zuo
Keyword(s):  
Carbon Nanotubes ◽  
Vibrational Spectra ◽  
Double Wall

Ion implantation effect on Resonance Raman spectroscopy of double-wall carbon nanotubes

2010 ◽  
Author(s):  
E. C. Moreira ◽  
G. D. Saraiva ◽  
A. G. Souza Filho ◽  
G. Braunstein ◽  
H. Muramatsu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Ion Implantation ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Double Wall

Diameter-selective resonant Raman scattering in double-wall carbon nanotubes

2002 ◽  
Vol 66 (7) ◽  
Author(s):  
S. Bandow ◽  
G. Chen ◽  
G. U. Sumanasekera ◽  
R. Gupta ◽  
M. Yudasaka ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Scattering ◽  
Resonant Raman ◽  
Resonant Raman Scattering ◽  
Double Wall

scholarly journals Investigation of the fabrication and structure of double-wall carbon nanotubes

2003 ◽  
Vol 52 (11) ◽  
pp. 2939
Author(s):  
Wang Miao ◽  
Li Zhen-Hua ◽  
Saito Yahachi
Keyword(s):  
Carbon Nanotubes ◽  
Double Wall

Field emission properties of double-wall carbon nanotubes

2004 ◽  
Vol 16 (1) ◽  
pp. 125-128 ◽  
Author(s):  
Young-Woo Son ◽  
Seungeun Oh ◽  
Jisoon Ihm ◽  
Seungwu Han
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Double Wall

Photocurrent spectroscopy of double wall carbon nanotubes

2005 ◽  
Vol 412 (1-3) ◽  
pp. 190-194 ◽  
Author(s):  
A. Mohite ◽  
G.U. Sumanasekera ◽  
K. Hirahara ◽  
S. Bandow ◽  
S. Iijima ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Photocurrent Spectroscopy ◽  
Double Wall

scholarly journals Synthesizing carbon nanotubes in space

2019 ◽  
Vol 631 ◽  
pp. A54 ◽  
Author(s):  
Tao Chen ◽  
Aigen Li
Keyword(s):  
Carbon Nanotubes ◽  
Vibrational Spectra ◽  
Density Functional ◽  
Hydrogen Abstraction ◽  
Infrared Space Observatory ◽  
Functional Theory ◽  
Space Telescope ◽  
Formation Pathway ◽  
Polycyclic Aromatic ◽  
Abundant Element

Context. As the fourth most abundant element in the universe, carbon (C) is widespread in the interstellar medium (ISM) in various allotropic forms (e.g. fullerenes have been identified unambiguously in many astronomical environments, the presence of polycyclic aromatic hydrocarbon molecules in space has been commonly acknowledged, and presolar graphite, as well as nanodiamonds, have been identified in meteorites). As stable allotropes of these species, whether carbon nanotubes (CNTs) and their hydrogenated counterparts are also present in the ISM or not is unknown. Aims. The aim of the present works is to explore the possible routes for the formation of CNTs in the ISM and calculate their fingerprint vibrational spectral features in the infrared (IR). Methods. We studied the hydrogen-abstraction and acetylene-addition (HACA) mechanism and investigated the synthesis of nanotubes using density functional theory (DFT). The IR vibrational spectra of CNTs and hydrogenated nanotubes (HNTs), as well as their cations, were obtained with DFT. Results. We find that CNTs could be synthesized in space through a feasible formation pathway. CNTs and cationic CNTs, as well as their hydrogenated counterparts, exhibit intense vibrational transitions in the IR. Their possible presence in the ISM could be investigated by comparing the calculated vibrational spectra with astronomical observations made by the Infrared Space Observatory, Spitzer Space Telescope, and particularly the upcoming James Webb Space Telescope.

Selective synthesis of double-wall carbon nanotubes by CCVD of acetylene using zeolite supports

2003 ◽  
Vol 382 (5-6) ◽  
pp. 679-685 ◽  
Author(s):  
Tatsuki Hiraoka ◽  
Tomoju Kawakubo ◽  
Junichi Kimura ◽  
Risa Taniguchi ◽  
Atsuto Okamoto ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Selective Synthesis ◽  
Zeolite Supports ◽  
Double Wall
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