Structural Measurements for Single-Wall Carbon Nanotubes by Raman Scattering Technique
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
4th International Conference on Nanostructured Materials
14-19 Jun 1998
,
Stockholm
|
| Journal |
Nanostructured Materials
ISSN: 0965-9773
|
| Output data |
Year: 1999,
Volume: 12,
Number: 1,
Pages: 567-572
Pages count
: 6
DOI:
10.1016/S0965-9773(99)00185-3
|
| Authors |
Obraztsova E.D.
1
,
Bonard J.
2
,
Kuznetsov V.L.
3
,
Zaikovskii V.I.
3
,
Pimenov S.M.
1
,
Pozarov A.S.
1
,
Terekhov S.V.
1
,
Konov V.I.
1
,
Obraztsov A.N.
4
,
Volkov A.P.
4
|
| Affiliations |
| 1 |
General Physics Institute, RAS, 38 Vavilov street, 117942, Moscow
|
| 2 |
Institute de Physique Experimentale, EPFL, CH- 10 15, Lausanne, Switzerland
|
| 3 |
Boreskov Institute of Catalysis, Lavrentieva 5, 630090, Novosibirsk, Russia
|
| 4 |
Physics Department of M.V. Lomonosov MSU, 119899, Moscow, Russia
|
|
The single-wall carbon nanotubes grown by different techniques have been investigated by Roman scattering and high resolution transmission electron microscopy (HRTEM). The tube diameter values and the tube distribution over diameter have been estimated from the position and shape of the low-frequency band in the Raman spectrum containing the ‘breathing” modes. The diameter-dependent enhancement of the Raman signals from the different nanotube fractions occurred not only due to optical resonance with the laser excitation energy, but also due to thermo-induced resonances. The low-field electron emission from the single-wall carbon nanotube material has been measured. The threshold fields were 0.75–2 V/μm, the emission current reached the value 15 mA/cm2 at fields of 10 V/μm.