Local phonon modes of single-walled carbon nanotubes observed by near-field Raman spectroscopy

2004 ◽  
Author(s):  
A. Hartschuh
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Near Field ◽  
Single Walled Carbon Nanotubes ◽  
Phonon Modes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

NEAR-FIELD RAMAN SPECTROSCOPY OF INDIVIDUAL SINGLE-WALLED CARBON NANOTUBES

2004 ◽  
Vol 03 (03) ◽  
pp. 371-379 ◽  
Author(s):  
ACHIM HARTSCHUH ◽  
NEIL ANDERSON ◽  
LUKAS NOVOTNY
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Spatial Resolution ◽  
Near Field ◽  
Single Walled Carbon Nanotubes ◽  
Raman Signal ◽  
Single Walled Carbon ◽  
Raman Modes ◽  
Metal Tip ◽  
Walled Carbon Nanotubes

Near-field Raman spectroscopy with high spatial resolution is used to study single-walled carbon nanotubes (SWNTs) within dense samples. A sharp, laser-irradiated metal tip acts as a near-field excitation source causing an enhanced Raman signal within close proximity of the tip. We present optical images of different Raman modes with a spatial resolution better than 15 nm. Local spectroscopy allows us to identify and distinguish tubes with different structures on the nanometer-scale and to observe variations within the spectrum of individual tubes.

High-resolution Raman imaging of bundles of single-walled carbon nanotubes by tip-enhanced Raman spectroscopy

2015 ◽  
Vol 93 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Nastaran Kazemi-Zanjani ◽  
Pierangelo Gobbo ◽  
Ziyan Zhu ◽  
Mark S. Workentin ◽  
François Lagugné-Labarthet
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Near Field ◽  
Numerical Aperture ◽  
Single Walled Carbon Nanotubes ◽  
Localized Surface Plasmon ◽  
Glass Coverslip ◽  
Single Walled Carbon ◽  
Tip Enhanced Raman Spectroscopy ◽  
Walled Carbon Nanotubes

Bundles of single-walled carbon nanotubes (SWCNTs) prepared by plasma torch method and further purified, are deposited over a glass coverslip to estimate the spatial resolution of tip-enhanced Raman spectroscopy measurements. For this purpose, near-field Raman maps and spectra of isolated bundles of carbon nanotubes are collected using optimized experimental conditions such as a tightly focused beam using a 1.4 numerical aperture oil immersion microscope objective and a gold coated atomic force microscope probe illuminated by a radially polarized 632.8 nm wavelength to selectively excite the localized surface plasmon confined at the extremity of the tip. The near-field nature of the collected Raman signals is evaluated through measuring the decay of the Raman signal with respect to the tip-sample separation.

Near-Field Optical Identification of Metallic and Semiconducting Single-Walled Carbon Nanotubes

2020 ◽  
Vol 37 (2) ◽  
pp. 028101
Author(s):  
Lele Wang ◽  
Bosai Lyu ◽  
Qiang Gao ◽  
Jiajun Chen ◽  
Zhe Ying ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Near Field ◽  
Single Walled Carbon Nanotubes ◽  
Optical Identification ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

(n,m) Assignments and quantification for single-walled carbon nanotubes on SiO2/Si substrates by resonant Raman spectroscopy

Nanoscale ◽  
2015 ◽  
Vol 7 (24) ◽  
pp. 10719-10727 ◽  
Author(s):  
Daqi Zhang ◽  
Juan Yang ◽  
Feng Yang ◽  
Ruoming Li ◽  
Meihui Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Si Substrates ◽  
Resonant Raman ◽  
Walled Carbon Nanotubes

An ωRBM–dt relation specifically suitable for random SWNTs on SiO2/Si substrates grown by various catalysts.

RAMAN SPECTROSCOPY OF ISOLATED SINGLE-WALLED CARBON NANOTUBES

2006 ◽  
pp. 121-122 ◽  
Author(s):  
THIERRY MICHEL ◽  
MATTHIEU PAILLET ◽  
PHILIPPE PONCHARAL ◽  
AHMED ZAHAB ◽  
JEAN-LOUIS SAUVAJOL ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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