Initial stage of carbon nanotube formation process by surface decomposition of SiC: STM and NEXAFS study

2011 ◽  
Vol 20 (10) ◽  
pp. 1325-1328 ◽  
Author(s):  
Takahiro Maruyama ◽  
Satoshi Sakakibara ◽  
Shigeya Naritsuka ◽  
Kenta Amemiya
Keyword(s):  
Carbon Nanotube ◽  
Formation Process ◽  
Initial Stage ◽  
Surface Decomposition

Formation process of silicide at Pt-Si (111) interface

1988 ◽  
Vol 46 ◽  
pp. 484-485
Author(s):  
Y. yokota ◽  
H. Hashimoto
Keyword(s):  
Electron Microscope ◽  
Formation Process ◽  
Ion Beam ◽  
Cross Sectional ◽  
Platinum Silicide ◽  
Initial Stage ◽  
Resolution Electron ◽  
High Resolution Electron Microscope ◽  
Diamond Saw ◽  
Si Wafer

The initial stage of the reaction process forming the platinum silicide at Pt/Si (111) interfaces have been investigated by a high resolution electron microscope in both “flat-on” [1] and “cross-sectional” mode.First, platinum of 11 nm thickness was deposited on a Si (111) wafer. For observing the specimen in “flat-on” mode, the top surface and edge of the specimen were covered by paraffin and etched chemically using CP-4 reagent from backside. The specimen for observing in “cross-sectional” mode was prepared as follows. The Si wafer was cut into slips of 3mm width. After stacking 4 to 6 slips together with epoxy resin, the stacks were sliced to a thickness of 0.3-0.4mm by a diamond saw. The slices were mechanically polished to a thickness lower than 0.05mm and then thinned by Ar ion beam.The formation process of platinum silicide (PtSi) was observed in a cross-sectional specimen.

Spectroscopic ellipsometry of carbon nanotube formation in SiC surface decomposition

2004 ◽  
Vol 455-456 ◽  
pp. 339-343 ◽  
Author(s):  
K. Matsumoto ◽  
H. Maeda ◽  
Y. Kawaguchi ◽  
K. Takahashi ◽  
M. Aoyama ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Spectroscopic Ellipsometry ◽  
Surface Decomposition

Band alignment of a carbon nanotube/n-type 6H-SiC heterojunction formed by surface decomposition of SiC using photoelectron spectroscopy

2012 ◽  
Vol 101 (9) ◽  
pp. 092106 ◽  
Author(s):  
Takahiro Maruyama ◽  
Satoshi Sakakibara ◽  
Shigeya Naritsuka ◽  
Wataru Norimatsu ◽  
Michiko Kusunoki ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Photoelectron Spectroscopy ◽  
Band Alignment ◽  
Surface Decomposition

Theoretical investigation on carbon nucleation on nickel carbides at initial stages of single-walled carbon nanotube formation

2014 ◽  
Vol 16 (36) ◽  
pp. 19654-19660 ◽  
Author(s):  
Zhimin Yang ◽  
Qiang Wang ◽  
Xiaoye Shan ◽  
Shuo-Wang Yang ◽  
Hongjun Zhu
Keyword(s):  
Carbon Nanotube ◽  
Theoretical Investigation ◽  
First Principles ◽  
Metal Carbide ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
First Principles Study ◽  
Initial Stage

A first-principles study shows that metal carbide clusters do exist during the initial stage of single-walled carbon nanotube nucleation.

STM observation of formation process of carbon nanotube from 6H-SiC (000-1)

2005 ◽  
Vol 901 ◽  
Author(s):  
Takahiro Maruyama ◽  
Yasuyuki Kawamura ◽  
Hyungjin Bang ◽  
Naomi Fujita ◽  
Tomoyuki Shiraiwa ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Scanning Tunneling Microscopy ◽  
Formation Process ◽  
Ultrahigh Vacuum ◽  
Atomic Resolution ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Carbon Networks ◽  
Thermally Treated

AbstractFormation process of nanosized cap structures on a thermally treated 6H-SiC(000-1) substrate was investigated using atomic-resolution ultrahigh-vacuum scanning tunneling microscopy (UHV-STM). After formation of clusters of carobon particles 1-2 nanometer in diameter at 1150°C, these nanoparticles merged, forming nanosized cap structures. Hexagonal carbon networks, partly composed of pentagons, were clearly observed on the surface of the cap structures for a sample annealed above 1200°C. A model for the formation of carbon nanocaps on 6H-SiC(000-1) was proposed.

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