Atomic resolution scanning tunneling microscope study of single-walled carbon nanotubes on GaAs(110)

2004 ◽  
Vol 22 (4) ◽  
pp. 2005 ◽  
Author(s):  
L. B. Ruppalt ◽  
P. M. Albrecht ◽  
J. W. Lyding
Keyword(s):  
Carbon Nanotubes ◽  
Scanning Tunneling Microscope ◽  
Microscope Study ◽  
Single Walled Carbon Nanotubes ◽  
Atomic Resolution ◽  
Scanning Tunneling ◽  
Tunneling Microscope ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Single-walled carbon nanotubes synthesized by the pyrolysis of pyridine over catalysts

2006 ◽  
Vol 21 (11) ◽  
pp. 2835-2840 ◽  
Author(s):  
J. Liu ◽  
D.L. Carroll ◽  
J. Cech ◽  
S. Roth
Keyword(s):  
Carbon Nanotubes ◽  
Nitrogen Doping ◽  
Doping Concentration ◽  
Local Density ◽  
Single Walled Carbon Nanotubes ◽  
Scanning Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Local Density Of States ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Single-walled carbon nanotubes (SWNTs) were successfully synthesized by pyrolysis of pyridine over MgO supported Fe–Mo or Co–Mo catalysts in the presence of pure H2 or a mixture of H2 and NH3 atmospheres. The average diameters of SWNTs are ∼1.5 and ∼3 nm for pure H2 and the H2 and HN3 mixture, respectively. Scanning tunneling spectroscopy (STS) studies show that the SWNTs grown in both atmospheres are doped with nitrogen substituted into the lattice in a pyridine-type structure. This results in a donor feature in the local density of states with an energy that depends on the nitrogen doping concentration.

scholarly journals Spatially resolved scanning tunneling spectroscopy on single-walled carbon nanotubes

2000 ◽  
Vol 62 (8) ◽  
pp. 5238-5244 ◽  
Author(s):  
L. C. Venema ◽  
J. W. Janssen ◽  
M. R. Buitelaar ◽  
J. W. G. Wildöer ◽  
S. G. Lemay ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Single Walled Carbon ◽  
Spatially Resolved ◽  
Walled Carbon Nanotubes
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