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2022-12-14T04:01:33Z
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Wall-to-wall stress induced in (6,5) semiconducting nanotubes by encapsulation in metallic outer tubes of different diameters: A resonance Raman study of individual C(60)-derived double-wall carbon nanotubes
Villalpando-Paez, Federico
Muramatsu, Hiroyuki
Kim, Yoong Ahm
Farhat, Hootan
Endo, Morinobu
Terrones, Mauricio
Dresselhaus, Mildred S
Nanoscale, 2010,2, 406-411 - Reproduced by permission of The Royal Society of Chemistry
We measure resonant Raman scattering from 11 individual C(60)-derived double-wall carbon nanotubes all having inner semiconducting (6,5) tubes and various outer metallic tubes. The Raman spectra show the radial breathing modes (RBM) of the inner and the outer tubes to be simultaneously in resonance with the same laser energy. We observe that an increase in the RBM frequency of the inner tubes is related to an increase in the RBM frequency of the outer tubes. The Raman spectra also contain a sharp G(-) feature that increases in frequency as the nominal diameter of the outer metallic tubes decreases. Finally, the one-phonon second-order D-band mode shows a two-way frequency splitting that decreases with decreasing nominal wall-to-wall distance. We suggest that the stress which increases with decreasing nominal wall-to-wall distance is responsible for the hardening that is observed in the frequencies of the RBM, D and G(-) modes of the inner (6,5) semiconducting tubes.
Article
NANOSCALE. 2(3):406-411 (2010)
ROYAL SOC CHEMISTRY
2010
eng
journal article
AM
http://hdl.handle.net/10091/13663
https://soar-ir.repo.nii.ac.jp/records/12445
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=search&DB=pubmed&term=20644824
20644824
https://doi.org/10.1039/b9nr00268e
10.1039/b9nr00268e
2040-3364
NANOSCALE
2
3
406
411
https://soar-ir.repo.nii.ac.jp/record/12445/files/Wall_to_wall_stress_induced_6_5_semiconducting_nanotubes.pdf
application/pdf
7.5 MB
2015-09-28