Modifying the Density of States of Single-Walled Carbon Nanotubes by Reversible Wrapping with Organometallic Nanofoils: A Scanning Tunneling Spectroscopy Study

2012 ◽  
Vol 116 (48) ◽  
pp. 25611-25616 ◽  
Author(s):  
G. A. M. Sáfar ◽  
A. Malachias ◽  
R. Magalhães-Paniago ◽  
M. V. Marinho ◽  
H. O. Stumpf
Keyword(s):  
Carbon Nanotubes ◽  
Density Of States ◽  
Single Walled Carbon Nanotubes ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Spectroscopy Study ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

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

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.

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