scholarly journals Nanocatalyst shape and composition during nucleation of single-walled carbon nanotubes

RSC Advances ◽  
2015 ◽  
Vol 5 (129) ◽  
pp. 106377-106386 ◽  
Author(s):  
Jose L. Gomez-Ballesteros ◽  
Juan C. Burgos ◽  
Pin Ann Lin ◽  
Renu Sharma ◽  
Perla B. Balbuena
Keyword(s):  
Carbon Nanotubes ◽  
High Resolution ◽  
Molecular Simulations ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
High Resolution Microscopy

Molecular simulations and in situ high resolution microscopy reveal the existence of a carbon gradient inside the nanocatalyst during nanotube nucleation.

DIRECTED GROWTH OF SINGLE-WALLED CARBON NANOTUBES

2002 ◽  
Vol 01 (03n04) ◽  
pp. 197-204 ◽  
Author(s):  
LANCE DELZEIT ◽  
RAMSEY STEVENS ◽  
CATTIEN NGUYEN ◽  
M. MEYYAPPAN
Keyword(s):  
Carbon Nanotubes ◽  
Vapor Deposition ◽  
Horizontal Plane ◽  
Chemical Vapor ◽  
Single Walled Carbon Nanotubes ◽  
Thermal Chemical Vapor Deposition ◽  
Single Walled Carbon ◽  
Directed Growth ◽  
Walled Carbon Nanotubes

Single-walled carbon nanotubes (SWNTs) are grown by thermal chemical vapor deposition at 900°C using methane. Application of an electric field (0.4 V/μm) in situ during the growth process results in directed growth of SWNTs on a horizontal plane bridging a distance as long as 25 μm. This approach is useful in the fabrication of nanotube based transistors.

In Situ Raman Spectroelectrochemistry of Single-Walled Carbon Nanotubes: Investigation of Materials Enriched with (6,5) Tubes

2008 ◽  
Vol 112 (36) ◽  
pp. 14179-14187 ◽  
Author(s):  
Ladislav Kavan ◽  
Otakar Frank ◽  
Alexander A. Green ◽  
Mark C. Hersam ◽  
János Koltai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
In Situ Raman ◽  
Walled Carbon Nanotubes

scholarly journals Suspended superconducting weak links from aerosol-synthesized single-walled carbon nanotubes

Nano Research ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3433-3438
Author(s):  
Jukka-Pekka Kaikkonen ◽  
Abhilash Thanniyil Sebastian ◽  
Patrik Laiho ◽  
Nan Wei ◽  
Marco Will ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapour ◽  
Superconducting Devices ◽  
Single Walled Carbon Nanotubes ◽  
Weak Links ◽  
Ambient Conditions ◽  
Single Walled Carbon ◽  
Cvd Growth ◽  
Walled Carbon Nanotubes

AbstractWe report a new scheme for fabrication of clean, suspended superconducting weak links from pristine single-walled carbon nanotubes (SWCNT). The SWCNTs were grown using the floating-catalyst chemical vapour deposition (FC-CVD) and directly deposited on top of prefabricated superconducting molybdenum-rhenium (MoRe) electrodes by thermophoresis at nearly ambient conditions. Transparent contacts to SWCNTs were obtained by vacuum-annealing the devices at 900 °C, which enabled proximity-induced supercurrents up to 53 nA. SWCNT weak links fabricated on MoRe/palladium bilayer sustained supercurrents up to 0.4 nA after annealing at relatively low temperature of 220 °C. The fabrication process does neither expose SWCNTs to lithographic chemicals, nor the contact electrodes to the harsh conditions of in situ CVD growth. Our scheme facilitates new experimental possibilities for hybrid superconducting devices.

Determination of Precise Redox Properties of Oxygen-Doped Single-Walled Carbon Nanotubes Based on in Situ Photoluminescence Electrochemistry

2015 ◽  
Vol 120 (29) ◽  
pp. 15632-15639 ◽  
Author(s):  
Tomonari Shiraishi ◽  
Gergely Juhász ◽  
Tomohiro Shiraki ◽  
Naoto Akizuki ◽  
Yuhei Miyauchi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Redox Properties ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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