Chirality changes in carbon nanotubes studied with near-field Raman spectroscopy

被引:104
作者
Anderson, Neil
Hartschuh, Achim
Novotny, Lukas
机构
[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA
[2] Univ Munich, Dept Chem & Biochem, D-81377 Munich, Germany
关键词
D O I
10.1021/nl0622496
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report on the direct visualization of chirality changes in carbon nanotubes by mapping local changes in resonant RBM phonon frequencies with an optical resolution of 40 nm using near-field Raman spectroscopy. We observe the transition from semiconducting-to-metal and metal-to-metal chiralities at the single nanotube level. Our experimental findings, based on detecting changes in resonant RBM frequencies, are complemented by measuring changes in the G-band frequency and line shape. In addition, we observe increased Raman scattering due to local defects associated with the structural transition. From our results, we determine the spatial extent of the transition region to be L-trans similar to 40-100 nm.
引用
收藏
页码:577 / 582
页数:6
相关论文
共 23 条
  • [1] Nanoscale vibrational analysis of single-walled carbon nanotubes
    Anderson, N
    Hartschuh, A
    Cronin, S
    Novotny, L
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (08) : 2533 - 2537
  • [2] Carbon nanotubes - the route toward applications
    Baughman, RH
    Zakhidov, AA
    de Heer, WA
    [J]. SCIENCE, 2002, 297 (5582) : 787 - 792
  • [3] Second-order resonant Raman spectra of single-walled carbon nanotubes
    Brown, SDM
    Corio, P
    Marucci, A
    Pimenta, MA
    Dresselhaus, MS
    Dresselhaus, G
    [J]. PHYSICAL REVIEW B, 2000, 61 (11): : 7734 - 7742
  • [4] Pure carbon nanoscale devices: Nanotube heterojunctions
    Chico, L
    Crespi, VH
    Benedict, LX
    Louie, SG
    Cohen, ML
    [J]. PHYSICAL REVIEW LETTERS, 1996, 76 (06) : 971 - 974
  • [5] Raman spectral imaging of a carbon nanotube intramolecular junction
    Doorn, SK
    O'Connell, MJ
    Zheng, LX
    Zhu, YT
    Huang, SM
    Liu, J
    [J]. PHYSICAL REVIEW LETTERS, 2005, 94 (01)
  • [6] Raman spectroscopy on isolated single wall carbon nanotubes
    Dresselhaus, MS
    Dresselhaus, G
    Jorio, A
    Souza, AG
    Saito, R
    [J]. CARBON, 2002, 40 (12) : 2043 - 2061
  • [7] Nanoscale optical imaging of excitons in single-walled carbon nanotubes
    Hartschuh, A
    Qian, HH
    Meixner, AJ
    Anderson, N
    Novotny, L
    [J]. NANO LETTERS, 2005, 5 (11) : 2310 - 2313
  • [8] Near-field Raman spectroscopy using a sharp metal tip
    Hartschuh, A
    Anderson, N
    Novotny, L
    [J]. JOURNAL OF MICROSCOPY-OXFORD, 2003, 210 : 234 - 240
  • [9] High-resolution near-field Raman microscopy of single-walled carbon nanotubes -: art. no. 095503
    Hartschuh, A
    Sánchez, EJ
    Xie, XS
    Novotny, L
    [J]. PHYSICAL REVIEW LETTERS, 2003, 90 (09) : 4
  • [10] PENTAGONS, HEPTAGONS AND NEGATIVE CURVATURE IN GRAPHITE MICROTUBULE GROWTH
    IIJIMA, S
    ICHIHASHI, T
    ANDO, Y
    [J]. NATURE, 1992, 356 (6372) : 776 - 778