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Comparative high pressure Raman study of individual and bundled single‐wall carbon nanotubes
Author(s) -
Christofilos D.,
Arvanitidis J.,
Andrikopoulos K. S.,
Kourouklis G. A.,
Ves S.,
Takenobu T.,
Iwasa Y.
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200672568
Subject(s) - raman spectroscopy , carbon nanotube , materials science , redistribution (election) , high pressure , nanotechnology , deformation (meteorology) , composite material , optics , mechanics , physics , politics , political science , law
In this work, individual single‐wall carbon nanotubes (i‐SWCNTs) and their parent bundled material (b‐SWCNTs) are investigated by means of high pressure Raman spectroscopy. Pressure application results in the broadening and intensity redistribution of the radial breathing modes (RBMs) in both materials. These changes are more pronounced in the case of bundled SWCNTs as it is also evident by the abrupt increase of the G + bandwidth at ∼5.5 GPa, in contrast to the smoother pressure response of the individual tubes. Our experimental findings reflect the size dependent cross‐section deformation of carbon nanotubes which evolves differently in the two materials investigated. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)