Reconstructing the radial breathing mode resonance Raman spectra for HiPco single-wall carbon nanotubes

AbstractThe double resonance Raman spectra of the disorder-induced D-band and some other non-zone-center phonon modes are discussed for two-dimensional (2D) graphite and to some extent for single wall carbon nanotubes (SWNTs). The phonon dispersion relations of graphite can be determined using Raman spectroscopy b y measuring the non-zone center Raman phonon frequencies in combination with theoretically determined phonon q-vectors. We report a t of the phonon dispersion relations to experimental Raman spectra which were previously observed but have not y et been assigned to speci c phonon branches. We found that the D-band and the G0-band of 2D graphite consist of, respectively, two and one Raman Lorentzian peaks, while 3D graphite shows two G0-band Lorentzian peaks. The appearance of two G0 peaks in the resonance Raman spectra of SWNTs may come from resonances of one laser line with two di erent van Hov e singularities.

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Measuring the Uniaxial Strain of Individual Single-Wall Carbon Nanotubes: Resonance Raman Spectra of Atomic-Force-Microscope Modified Single-Wall Nanotubes

Physical Review Letters ◽

10.1103/physrevlett.93.167401 ◽

2004 ◽

Vol 93 (16) ◽

Cited By ~ 169

Author(s):

S. B. Cronin ◽

A. K. Swan ◽

M. S. Ünlü ◽

B. B. Goldberg ◽

M. S. Dresselhaus ◽

...

Keyword(s):

Carbon Nanotubes ◽

Atomic Force Microscope ◽

Raman Spectra ◽

Resonance Raman ◽

Uniaxial Strain ◽

Single Wall Carbon Nanotubes ◽

Single Wall Carbon ◽

Atomic Force ◽

Resonance Raman Spectra ◽

Single Wall Nanotubes

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(Invited) Effects of Fullerene Encapsulation on Radial Breathing Mode Frequencies of Metallic Single-Wall Carbon Nanotubes

ECS Meeting Abstracts ◽

10.1149/ma2010-01/32/1507 ◽

2010 ◽

Keyword(s):

Carbon Nanotubes ◽

Radial Breathing Mode ◽

Single Wall Carbon Nanotubes ◽

Breathing Mode ◽

Single Wall Carbon

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

MRS Proceedings ◽

10.1557/proc-858-hh13.14 ◽

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.

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