Two-phonon combination Raman modes in covalently functionalized single-wall carbon nanotubes

被引:45
作者
Fantini, C. [1 ]
Pimenta, M. A. [2 ]
Strano, M. S. [3 ]
机构
[1] Ctr Desenvolvimento Tecnol Nucl, BR-31270901 Belo Horizonte, MG, Brazil
[2] Univ Fed Minas Gerais, Dept Fis, BR-31270901 Belo Horizonte, MG, Brazil
[3] MIT, Dept Chem Engn, Cambridge, MA 02139 USA
基金
美国国家科学基金会;
关键词
D O I
10.1021/jp803855z
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-wall carbon nanotubes covalently functionalized with chloro-phenyl groups were investigated by Raman spectroscopy. We examine the features observed in the spectral ranges 350-1200, 1650-2000, and 2400-3200 cm(-1). The Raman modes associated with the presence of defects, strongly enhanced by the functionalization are clearly distinguished from those defect independent. We indicate that some features highly enhanced by the electron-phonon coupling are very sensitive to charge transfers between the nanotubes and functional groups. A feature at similar to 2900 cm(-1) is observed in the spectra of functionalized nanotubes, and its origin is explained here as a combination of two disorder-induced modes.
引用
收藏
页码:13150 / 13155
页数:6
相关论文
共 36 条
[11]   One-dimensional character of combination modes in the resonance Raman scattering of carbon nanotubes [J].
Fantini, C ;
Jorio, A ;
Souza, M ;
Ladeira, LO ;
Souza, AG ;
Saito, R ;
Samsonidze, GG ;
Dresselhaus, G ;
Dresselhaus, MS ;
Pimenta, MA .
PHYSICAL REVIEW LETTERS, 2004, 93 (08) :087401-1
[12]   Optical transition energies for carbon nanotubes from resonant Raman spectroscopy: Environment and temperature effects [J].
Fantini, C ;
Jorio, A ;
Souza, M ;
Strano, MS ;
Dresselhaus, MS ;
Pimenta, MA .
PHYSICAL REVIEW LETTERS, 2004, 93 (14) :147406-1
[13]   Raman spectroscopy of covalently functionalized single-wall carbon nanotubes [J].
Graupner, R. .
JOURNAL OF RAMAN SPECTROSCOPY, 2007, 38 (06) :673-683
[14]   Curvature effects on the E33 and E44 exciton transitions in semiconducting single-walled carbon nanotubes [J].
Haroz, Erik H. ;
Bachilo, Sergei M. ;
Weisman, R. Bruce ;
Doorn, Stephen K. .
PHYSICAL REVIEW B, 2008, 77 (12)
[15]   PHONON MODES IN CARBON NANOTUBULES [J].
JISHI, RA ;
VENKATARAMAN, L ;
DRESSELHAUS, MS ;
DRESSELHAUS, G .
CHEMICAL PHYSICS LETTERS, 1993, 209 (1-2) :77-82
[16]   Raman and IR spectroscopy of chemically processed single-walled carbon nanotubes [J].
Kim, UJ ;
Furtado, CA ;
Liu, XM ;
Chen, GG ;
Eklund, PC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (44) :15437-15445
[17]   Amine basicity (pKb) controls the analyte blinding energy on single walled carbon nanotube electronic sensor Arrays [J].
Lee, Chang Young ;
Strano, Michael S. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (05) :1766-1773
[18]   Intermediate-frequency Raman modes for the lower optical transitions of semiconducting single-walled carbon nanotubes [J].
Luo, Zhengtang ;
Papadimitrakopoulos, Fotios ;
Doorn, Stephen K. .
PHYSICAL REVIEW B, 2007, 75 (20)
[19]   Determination of LA and TO phonon dispersion relations of graphene near the Dirac point by double resonance Raman scattering [J].
Mafra, D. L. ;
Samsonidze, G. ;
Malard, L. M. ;
Elias, D. C. ;
Brant, J. C. ;
Plentz, F. ;
Alves, E. S. ;
Pimenta, M. A. .
PHYSICAL REVIEW B, 2007, 76 (23)
[20]   Ab initio study of OH-functionalized single-wall carbon nanotubes -: art. no. 245425 [J].
Pan, H ;
Feng, YP ;
Lin, JY .
PHYSICAL REVIEW B, 2004, 70 (24) :1-5