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High-pressure optical absorption studies of double-walled carbon nanotubes.

Marquina, Jesús and Flahaut, Emmanuel and Gonzalez, Jesus High-pressure optical absorption studies of double-walled carbon nanotubes. (2012) Physica status solidi (RRL) - Rapid Research Letters, 6 (9-10). 382-384. ISSN 1862-6254

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Official URL: http://dx.doi.org/10.1002/pssr.201206280


In this Letter the electronic properties of double-walled carbon nanotubes (DWCNTs) were studied by transmission measurements as a function of hydrostatic pressure up to 10 GPa. The energies of the optical transitions between the Van Hove singularities decrease with increasing pressure, which can be attributed to pressure-induced hybridization and symmetry-breaking effects. We observed a linear behaviour in the pressure-induced shift of the optical transitions. This is in good agreement with previous studies on single-walled carbon nanotubes (SWCNTs). High-resolution TEM image of a bundle of DWCNTs (A), histogram of the number of walls (B), and diameter distribution for CNT samples plotted from 100 HRTEM images (C).

Item Type:Article
Additional Information:Thanks to Wiley-VCH Verlag editor. The definitive version is available at http://onlinelibrary.wiley.com/doi/10.1002/pssr.201206280/abstract;jsessionid=881B265644BDBA782E160275E210A8B1.d04t03
HAL Id:hal-03468712
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 - Toulouse INP (FRANCE)
Other partners > Universidad de Los Andes (VENEZUELA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Universidad de Cantabria - UNICAN (SPAIN)
Laboratory name:
Deposited On:31 May 2013 14:25

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