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Ko, Hyunhyub
Functional Nanomaterials & Devices Lab
Research Interests
  • Functional nanomaterials, flexible electronics, electronic skins, wearable sensors

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High-resolution Raman microscopy of curled carbon nanotubes

Cited 28 times inthomson ciCited 27 times inthomson ci
Title
High-resolution Raman microscopy of curled carbon nanotubes
Author
Ko, HyunhyubPikus, YJiang, CYJauss, AHollricher, OTsukruk, VV
Keywords
SCATTERING; ARRAYS
Issue Date
2004-09
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.85, no.13, pp.2598 - 2600
Abstract
The use of confocal Raman imaging spectroscopy and atomic force microscopy for identifying conditions of carbon nanotubes with bent nanotube bundles in the bent state was described. It was found that the tangential G mode on Raman spectra systemically shifts downward upon nanotube bending. The frequency shifts observed in the nanotubes were due to tensile strain of the bending nanotube arrays, which resulted in the loosening of C-C bonds in the outer walls. It was speculated that the frequency shift in Raman spectra was used for fast monitoring of the bending state of the standing carbon nanotube in gas and fluid flow nanosensors.
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DOI
10.1063/1.1795981
ISSN
0003-6951
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ECHE_Journal Papers
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