An Anomalous Enhancement of the Ag(2) Mode in the Resonance Raman Spectra of C60 Embedded in Single-Walled Carbon Nanotubes during Anodic Charging

2010 ◽  
Vol 114 (6) ◽  
pp. 2505-2511 ◽  
Author(s):  
Martin Kalbac ◽  
Viktor Zólyomi ◽  
Ádám Rusznyák ◽  
János Koltai ◽  
Jenő Kürti ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectra ◽  
Resonance Raman ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Resonance Raman Spectra ◽  
Walled Carbon Nanotubes

Quantitative evaluation of bundling effect on single walled carbon nanotubes by resonance Raman spectra

2004 ◽  
Vol 858 ◽  
Author(s):  
Zhengtang Luo ◽  
Rongfu Li ◽  
Sang Nyon Kim ◽  
Fotios Papadimitrakopoulos
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectra ◽  
Resonance Raman ◽  
Single Walled Carbon Nanotubes ◽  
Radial Breathing Mode ◽  
Peak Position ◽  
Single Walled Carbon ◽  
Physicochemical Changes ◽  
Resonance Raman Spectra ◽  
Walled Carbon Nanotubes

ABSTRACTThe radial breathing mode (RBM) region of the resonance Raman spectra of HiPco single walled carbon nanotubes (SWNTs) was investigated as a function of aggregation. This was modeled using an energetic deviation term (ΔE), imparted to the optical transitions (Eii(n, m)) by bundling effect. Eii(n, m) values obtained from photoluminescence (PL) measurements were used to reconstruct these RBM profiles. The simulation revealed that the PL-determined Eii(n, m) set provided a good fit in terms of peak position. Providing an accurate set of Eii(n, m) values becomes available, the RBM profile reconstruction methodology discussed herein could greatly enhance our ability to model a range of physicochemical changes to the immediate environment of SWNTs.

A resonance Raman study of carboxyl induced defects in single-walled carbon nanotubes

2010 ◽  
Vol 405 (21) ◽  
pp. 4570-4573 ◽  
Author(s):  
Jamal Talla ◽  
Donghui Zhang ◽  
Madhuvanthi Kandadai ◽  
Aditya Avadhanula ◽  
Seamus Curran
Keyword(s):  
Carbon Nanotubes ◽  
Resonance Raman ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Raman Study ◽  
Walled Carbon Nanotubes ◽  
Induced Defects

scholarly journals C60 Filling Rate in Carbon Peapods: A Nonresonant Raman Spectra Analysis

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Fatima Fergani ◽  
Sidi Abdelmajid Ait Abdelkader ◽  
Hassane Chadli ◽  
Brahim Fakrach ◽  
Abdelhai Rahmani ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Experimental Method ◽  
Raman Spectra ◽  
Double Helix ◽  
Single Walled Carbon Nanotubes ◽  
Filling Rate ◽  
Spectra Analysis ◽  
Single Walled Carbon ◽  
Bond Polarizability ◽  
Walled Carbon Nanotubes

We calculated the nonresonant Raman spectra of C60 peapods to determine the concentration of C60 fullerenes inside single-walled carbon nanotubes. We focus on peapods with large diameters for which C60 molecules can adopt a double helix configuration or a two-molecule layer configuration. Our calculations are performed within the framework of the bond-polarizability model combined with the spectral moment’s method. The changes in the Raman spectra as a function of C60 filling rate and the configuration of C60 molecules inside the nanotubes are identified and discussed. Our calculations support the experimental method proposed by Kuzmany to evaluate the concentration of C60 molecules inside nanotubes.

Raman spectra of single walled carbon nanotubes at high temperatures: pretreating samples in a nitrogen atmosphere improves their thermal stability in air

2017 ◽  
Vol 19 (10) ◽  
pp. 7215-7227 ◽  
Author(s):  
J. Molina-Duarte ◽  
L. I. Espinosa-Vega ◽  
A. G. Rodríguez ◽  
R. A. Guirado-López
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Raman Spectra ◽  
Temperature Interval ◽  
Theoretical Study ◽  
Chemical Reactivity ◽  
Single Walled Carbon Nanotubes ◽  
Nitrogen Atmosphere ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

We present a combined experimental and theoretical study dedicated to analyzing the structural stability and chemical reactivity of single walled carbon nanotubes (SWCNTs) in the presence of air and nitrogen atmospheres in the temperature interval of 300–1000 K.

Laser-Heating Effect on Raman Spectra of Individual Suspended Single-Walled Carbon Nanotubes

2007 ◽  
Vol 111 (5) ◽  
pp. 1988-1992 ◽  
Author(s):  
Yingying Zhang ◽  
Hyungbin Son ◽  
Jin Zhang ◽  
Jing Kong ◽  
Zhongfan Liu
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectra ◽  
Laser Heating ◽  
Single Walled Carbon Nanotubes ◽  
Heating Effect ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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