Tunable Raman spectroscopy study of CVD and peapod-derived bundled and individual double-wall carbon nanotubes
Name
Villalpando-Paez-2010-Tunable Raman spectr.pdf
Size
726.14 KB
Format
Adobe PDF
Checksum (MD5)
e3acdc2cded5638bd9b2ae669cd2ffb0
Author(s)
Dresselhaus, Mildred
Moura, L. G.
Muramatsu, Hiroyuki
Villalpando Paez, Federico
Fantini, C.
Hayashi, T.
Kim, Y. A.
Endo, M.
Pimenta, M. A.
Terrones, M.
Date Issued
October 2010
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Villalpando-Paez, F. et al. “Tunable Raman spectroscopy study of CVD and peapod-derived bundled and individual double-wall carbon nanotubes.” Physical Review B 82.15 (2010): 155416. © 2010 The American Physical Society.
Version
Final published version
Abstract
We use 40 laser excitation energies to analyze the differences in the Raman spectra from chemical vapor deposition-derived double-wall carbon nanotube (CVD-DWNT) bundles, fullerene-derived DWNT bundles (C[subscript 60]-DWNTs), and individual fullerene-derived DWNTs with inner type-I and type-II semiconducting tubes paired with outer metallic tubes. For the radial breathing mode (RBM) of SWNTs, an experimental omegaRBM vs dt relationship of the form omegaRBM=A/dt+B is obtained for the inner tubes of DWNT bundles where the A and B constants are found to be close to those obtained by elasticity theory when modeling the elastic properties of graphite. A similar change in omegaRBM is observed for an inner type-II semiconducting (6,5) tube and a type-I (9,1) tube when inside various metallic outer tubes. The G-band frequency is observed to upshift when switching the laser resonance from DWNTs with semiconducting inner tubes to DWNTs with metallic inner tubes. Finally, we measure the G′ feature from C[subscript 60]-DWNTs and note a downshift in frequency with respect to that of CVD-DWNTs.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevB.82.155416
