Resonant Raman scattering characterization of carbon nanotubes grown with different catalysts

被引:14
作者
Corio, P
Temperini, MLA
Santos, PS
Romero, JV
Huber, JG
Luengo, CA
Brown, SDM
Dresselhaus, MS
Dresselhaus, G
Dantas, MSS
Leite, CF
Matinaga, F
Gonzalez, JC
Pimenta, MA
机构
[1] Univ Sao Paulo, Inst Quim, BR-05508900 Sao Paulo, Brazil
[2] Univ Estadual Campinas, Inst Fis, BR-13083970 Campinas, SP, Brazil
[3] MIT, Dept Phys, Cambridge, MA 02139 USA
[4] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
[5] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA
[6] UFMG, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil
关键词
D O I
10.1016/S0009-2614(01)01268-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Single-walled carbon nanotube samples produced in the presence of different combinations of metal catalysts have been studied by resonant Raman spectroscopy. The diameter distribution of different samples has been determined by analysis of the laser excitation energy dependence of the tangential modes associated with metallic nanotubes. These modes are resonantly enhanced over a narrow range of the exciting energies, which shifts for different samples. The Raman cross-section expression has been used to fit the experimental Raman excitation profiles. This procedure was used to determine the mean value and the width of the distribution of diameters within each sample. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:373 / 380
页数:8
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