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Light scattering of double wall carbon nanotubes under hydrostatic pressure: pressure effects on the internal and external tubes

Puech, Pascal and Hubel, Hannes and Dunstan, David J. and Bassil, Ayman and Bacsa, Revathi and Peigney, Alain and Flahaut, Emmanuel and Laurent, Christophe and Bacsa, Wolfgang Light scattering of double wall carbon nanotubes under hydrostatic pressure: pressure effects on the internal and external tubes. (2004) physica status solidi b, 241 (14). 3360-3366. ISSN 0370-1972

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Official URL: http://doi.org/10.1002/pssb.200405227

Abstract

We report high-pressure Raman light scattering studies up to 10 GPa on double walled carbon nanotubes using two pressure transmitting media. In alcohol, a clear splitting of the G band is observed up to 10 GPa. This splitting is evidence for both discontinuous tangential stress and continuous radial stress. A structural distortion seems to be present at 3 GPa, revealed by a spectroscopic signature at 1480 cm–1. With argon as the pressure transmitting medium, the nanotubes bundles show a transition at 6 GPa which corresponds to a collapse to a flattened structure and removes the splitting. The comparison of the pressure coefficients before the transition for the two pressure transmitting media shows that the ratio of the two coefficients associated with internal and external tubes, is the same but the absolute values are different.

Item Type:Article
Additional Information:Thanks to Wiley editor. The original PDF of the article can be found at https://onlinelibrary.wiley.com/doi/abs/10.1002/pssb.200405227
HAL Id:hal-01812639
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > University of London (UNITED KINGDOM)
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Deposited By: cirimat webmestre
Deposited On:11 Jun 2018 14:20

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