Scanning Tunneling Microscopy and Spectroscopy of Nitrogen Doped Multi-Walled Carbon Nanotubes Produced by the Pyrolysis of Ferrocene and Benzylamine

2009 ◽  
Vol 9 (10) ◽  
pp. 6139-6143 ◽  
Author(s):  
Z. Osváth ◽  
A. A. Koós ◽  
N. Grobert ◽  
Z. Vértesy ◽  
Z. E. Horváth ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Scanning Tunneling Microscopy ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Nitrogen Doped ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

STM/STS investigation of carbon nanotubes deposited on Bi2Te3 surface

Open Physics ◽  
2009 ◽  
Vol 7 (2) ◽  
Author(s):  
Maciej Bazarnik ◽  
Maciej Cegiel ◽  
Piotr Biskupski ◽  
Monika Jazdzewska ◽  
SÅ‚awomir Mielcarek ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Structure ◽  
Scanning Tunneling Microscopy ◽  
Structural Defects ◽  
Scanning Tunneling ◽  
Narrow Gap ◽  
Tunneling Microscopy ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Walled Cnts

AbstractThis paper reports our scanning tunneling microscopy and spectroscopy (STM/STS) study of double-walled and multi-walled carbon nanotubes (CNTs) of different diameter deposited on Bi2Te3 (narrow gap semiconductor). The approximate diameter of the studied double-walled and multi-walled CNTs was 2 nm and 8 nm, respectively. Crystalline Bi2Te3 was used as a substrate to enhance the contrast between the CNTs and the substrate in the STS measurements performed to examine peculiarities of CNT morphology, such as junctions, ends or structural defects, in terms of their electronic structure.

INTER-LAYER INTERACTION IN DOUBLE-WALLED CARBON NANOTUBES EVIDENCED BY SCANNING TUNNELING MICROSCOPY AND SPECTROSCOPY

NANO ◽  
2008 ◽  
Vol 03 (02) ◽  
pp. 65-73 ◽  
Author(s):  
CRISTINA E. GIUSCA ◽  
YANN TISON ◽  
S. RAVI P. SILVA
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Structure ◽  
Scanning Tunneling Microscopy ◽  
Electronic Properties ◽  
Local Density ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Layer Interaction ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Scanning Tunneling Microscopy and Spectroscopy have been used in an attempt to elucidate the electronic structure of nanotube systems containing two constituent shells. Evidence for modified electronic structure due to the inter-layer interaction in double-walled carbon nanotubes is provided by the experimental tunneling spectra and the contribution of the inner tube to the local density of states of the "composite" double-walled system is identified in agreement with previous theoretical calculations. An explicit correlation between the chirality of the two constituent tubes, the inter-wall interaction and the overall electronic structure for double-walled carbon nanotubes, is demonstrated by our experiments, showing that the effect the inner tube has on the overall electronic structure of double-walled nanotubes cannot be neglected, and is key to the opto-electronic properties of the system. We postulate that previous analysis of the opto-electronic properties on multiple-walled carbon nanotubes based purely on the outer layer chirality of the tube needs significant modification based on new understanding brought forth with our analysis.

scholarly journals Scanning Tunneling Microscopy and Spectroscopy of Peptide-Wrapped Single-Walled Carbon Nanotubes

2006 ◽  
Vol 12 (S02) ◽  
pp. 554-555
Author(s):  
IH Musselman ◽  
VZ Poenitzsch ◽  
GR Dieckmann
Keyword(s):  
Carbon Nanotubes ◽  
Scanning Tunneling Microscopy ◽  
Single Walled Carbon Nanotubes ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3, 2006

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