Polarization dependence of radial breathing mode peaks in resonant Raman spectra of vertically aligned single-walled carbon nanotubes

2010 ◽  
Vol 81 (16) ◽  
Author(s):  
Zhengyi Zhang ◽  
Erik Einarsson ◽  
Yoichi Murakami ◽  
Yuhei Miyauchi ◽  
Shigeo Maruyama
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectra ◽  
Single Walled Carbon Nanotubes ◽  
Radial Breathing Mode ◽  
Polarization Dependence ◽  
Breathing Mode ◽  
Single Walled Carbon ◽  
Vertically Aligned ◽  
Resonant Raman ◽  
Walled Carbon Nanotubes

Second-order resonant Raman spectra of single-walled carbon nanotubes

2000 ◽  
Vol 61 (11) ◽  
pp. 7734-7742 ◽  
Author(s):  
S. D. M. Brown ◽  
P. Corio ◽  
A. Marucci ◽  
M. A. Pimenta ◽  
M. S. Dresselhaus ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectra ◽  
Single Walled Carbon Nanotubes ◽  
Second Order ◽  
Single Walled Carbon ◽  
Resonant Raman ◽  
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.

EFFECT OF TEMPERATURE CHANGE ON THE RADIAL BREATHING MODE FREQUENCY OF SINGLE-WALLED CARBON NANOTUBES

NANO ◽  
2013 ◽  
Vol 08 (05) ◽  
pp. 1350057 ◽  
Author(s):  
ESMAEAL GHAVANLOO ◽  
S. AHMAD FAZELZADEH
Keyword(s):  
Carbon Nanotubes ◽  
Environmental Temperature ◽  
Single Walled Carbon Nanotubes ◽  
Radial Breathing Mode ◽  
Effect Of Temperature ◽  
Geometrical Parameters ◽  
Breathing Mode ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Good Agreement

In this paper, the effect of environmental temperature on the radial breathing mode (RBM) frequency of single-walled carbon nanotubes (SWNTs) with arbitrary chirality is investigated. The analytical formulation is developed which can link the frequency to the geometrical parameters of the SWCNT and environmental temperature. Good agreement between the present results and existing experimental data is found. The results show that the predicted RBM frequencies of the SWCNTs decrease with increasing of temperature. The softening of the C–C force constants in the SWCNT is responsible for the temperature-induced downshift in the RBM frequencies.

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