Photo-Induced Tunneling Current in Single-Wall Carbon Nanotubes investigated by Scanning Tunneling Spectroscopy

2002 ◽  
Author(s):  
S. Kazaoui
Keyword(s):  
Carbon Nanotubes ◽  
Tunneling Current ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Single Wall Carbon Nanotubes ◽  
Scanning Tunneling ◽  
Single Wall Carbon

Local Electronic Structure in Ordered Aggregates of Carbon Nanotubes: Scanning Tunneling Microscopy/scanning Tunneling Spectroscopy Study

1998 ◽  
Vol 13 (9) ◽  
pp. 2389-2395 ◽  
Author(s):  
D. L. Carroll ◽  
P. M. Ajayan ◽  
S. Curran
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Structure ◽  
Scanning Tunneling Microscopy ◽  
Local Density ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Spatially Resolved ◽  
Local Electronic Structure

The recent application of tunneling probes in electronic structure studies of carbon nanotubes has proven both powerful and challenging. Using scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS), local electronic properties in ordered aggregates of carbon nanotubes (multiwalled nanotubes and ropes of single walled nanotubes) have been probed. In this report, we present evidence for interlayer (concentric tube) interactions in multiwalled tubes and tube-tube interactions in singlewalled nanotube ropes. The spatially resolved, local electronic structure, as determined by the local density of electronic states, is shown to clearly reflect tube-tube interactions in both of these aggregate forms.

scholarly journals Poly(3-hexyl-thiophene) coil-wrapped single wall carbon nanotube investigated by scanning tunneling spectroscopy

2009 ◽  
Vol 95 (14) ◽  
pp. 143116 ◽  
Author(s):  
Michele Giulianini ◽  
Eric R. Waclawik ◽  
John M. Bell ◽  
Manuela Scarselli ◽  
Paola Castrucci ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon

Scanning Tunneling Microscopy and Spectroscopy Studies of Single Wall Carbon Nanotubes

1998 ◽  
Vol 13 (9) ◽  
pp. 2380-2388 ◽  
Author(s):  
Teri Wang Odom ◽  
Jin-Lin Huang ◽  
Philip Kim ◽  
Min Ouyang ◽  
Charles M. Lieber
Keyword(s):  
Carbon Nanotubes ◽  
Scanning Tunneling Microscopy ◽  
Single Wall Carbon Nanotubes ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Metallic Behavior ◽  
Single Wall Carbon ◽  
Wide Range ◽  
Theoretical Predictions ◽  
Spectroscopy Studies

Scanning tunneling microscopy and spectroscopy have been used to characterize the atomic structure and tunneling density of states of individual single wall carbon nanotubes (SWNT's) and ropes containing many SWNT's. Analysis of atomically resolved SWNT images shows that the nanotubes consist of a wide range of diameters and helicities with no one structure clearly dominant. Tunneling spectroscopy measurements made simultaneously on atomically resolved SWNT's exhibit semiconducting and metallic behavior that depend predictably on helicity and diameter. In addition the band gaps of the semiconducting tubes were also found to depend inversely on diameter. These results are compared to theoretical predictions, and the implications of these studies as well as important future directions are discussed.

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