Nucleation and growth of single-walled carbon nanotubes in the laser ablation products

2006 ◽  
Author(s):  
Andre Gorbunoff ◽  
Oliver Jost
Keyword(s):  
Carbon Nanotubes ◽  
Laser Ablation ◽  
Single Walled Carbon Nanotubes ◽  
Nucleation And Growth ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Aligned Arrays of Single-Walled Carbon Nanotubes Generated from Random Networks by Orientationally Selective Laser Ablation

Nano Letters ◽  
2004 ◽  
Vol 4 (12) ◽  
pp. 2421-2426 ◽  
Author(s):  
Coskun Kocabas ◽  
Matthew A. Meitl ◽  
Anshu Gaur ◽  
Moonsub Shim ◽  
J. A. Rogers
Keyword(s):  
Carbon Nanotubes ◽  
Laser Ablation ◽  
Single Walled Carbon Nanotubes ◽  
Random Networks ◽  
Single Walled Carbon ◽  
Aligned Arrays ◽  
Walled Carbon Nanotubes

Isosteric Heat of Argon Adsorbed on Single-Walled Carbon Nanotubes Prepared by Laser Ablation

2005 ◽  
Vol 109 (19) ◽  
pp. 9317-9320 ◽  
Author(s):  
Vaiva Krungleviciute ◽  
Luke Heroux ◽  
Aldo D. Migone ◽  
Christopher T. Kingston ◽  
Benoit Simard
Keyword(s):  
Carbon Nanotubes ◽  
Laser Ablation ◽  
Single Walled Carbon Nanotubes ◽  
Isosteric Heat ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Gas and pressure effects on the production of single-walled carbon nanotubes by laser ablation

Carbon ◽  
2000 ◽  
Vol 38 (10) ◽  
pp. 1445-1451 ◽  
Author(s):  
E Muñoz ◽  
W.K Maser ◽  
A.M Benito ◽  
M.T Martı́nez ◽  
G.F de la Fuente ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Laser Ablation ◽  
Single Walled Carbon Nanotubes ◽  
Pressure Effects ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Twisting of Single-Walled Carbon Nanotube Bundles

1999 ◽  
Vol 593 ◽  
Author(s):  
Lu-Chang Qin ◽  
Sumio Iijima
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Laser Ablation ◽  
Total Energy ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Bundles ◽  
Lower Total Energy ◽  
Walled Carbon Nanotubes

ABSTRACTBundles of single-walled carbon nanotubes produced by laser ablation are often seen twisted in morphology, forming nanoropes which would better suit the function for improvement of structural stability in mechanical applications. The rope-like configuration is explained with a model that relates the twisting morphology to the helicity difference between the neighboring nanotubes. This selfassembly phenomenon is attributed to the fact that a twisted structure has lower total energy compared with the raft-like parallel bundles when the helicities of neighboring nanotubes are different.

Effect of Temperature Gradient near the Target and Gas Flow Rate on the Diameter Distribution of Single-Walled Carbon Nanotubes Grown by the Laser Ablation Technique

2000 ◽  
Vol 633 ◽  
Author(s):  
Rahul Sen ◽  
Hiromichi Kataura ◽  
Yohsuke Ohtsuka ◽  
Toshinobu Ishigaki ◽  
Shinzo Suzuki ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Laser Ablation ◽  
Temperature Gradient ◽  
Flow Rate ◽  
Gas Flow ◽  
Single Walled Carbon Nanotubes ◽  
Diameter Distribution ◽  
Gas Flow Rate ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

AbstractGas dynamic and time resolved imaging studies have been performed on the growth of single-walled carbon nanotubes (SWNTs) in the laser ablation process. SWNTs were synthesized by laser ablation of Ni-Co catalyzed graphite targets at 1200°C under argon flow. The effects of the temperature gradient near the target and the gas flow rate were studied in order to understand the effect of gas dynamics over the diameter distribution of SWNTs. The gas flow rate affects the diameter distribution of SWNTs especially when the growth species flow through a large temperature gradient. Scattering images from the growth species at different flow rates was recorded by high-speed video imaging. The results indicate that the velocities of these species are dependent on the gas flow rate but this dependence is evident 30 ms after the laser ablation. These findings are used to estimate the time period for the nucleation and the growth of SWNTs.

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