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Raman spectroscopic characterization of multiwall carbon nanotubes and of composites

Abstract : In this work Raman spectroscopy was used for extensive characterization of multiwall carbon nanotube (MWNTs) and of MWCNTs/rubber composites. We have measured the Raman spectra of bundled and dispersed multiwall carbon nanotubes. All the Raman bands of the carbon nanotubes are seen to shift to higher wavenumbers upon debundling on account of less intertube interactions. Effects of laser irradiation were also investigated. Strong effects are observed by changing the wavelength of the laser excitation. On the other hand, at a given excitation wavelength, changes on the Raman bands are observed by changing the laser power density due to sample heating during the measurement procedure.
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https://hal.sorbonne-universite.fr/hal-01576521
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Submitted on : Wednesday, August 23, 2017 - 12:38:26 PM
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L. Bokobza, J. Zhang. Raman spectroscopic characterization of multiwall carbon nanotubes and of composites. Express Polymer Letters, BME-PT Hungary, 2012, 6 (7), pp.601 - 608. ⟨10.3144/expresspolymlett.2012.63⟩. ⟨hal-01576521⟩

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