Uniform field emission from aligned carbon nanotubes prepared by CO disproportionation

2002 ◽  
Vol 92 (12) ◽  
pp. 7519-7522 ◽  
Author(s):  
Jin Seung Lee ◽  
Jung Sang Suh
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Uniform Field ◽  
Aligned Carbon Nanotubes ◽  
Co Disproportionation

Deposition and Characterization of IrO2 Nanocrystals on Vertically Aligned Carbon Nanotubes by MOCVD

2011 ◽  
Vol 170 ◽  
pp. 70-73
Author(s):  
Yi Min Chen ◽  
Ying Sheng Huang ◽  
Kuei Yi Lee ◽  
Kwong Kau Tiong
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Surface Morphology ◽  
Field Emission ◽  
Organic Chemical ◽  
Uniform Field ◽  
Uniform Size ◽  
Vertically Aligned Carbon Nanotubes ◽  
Aligned Carbon Nanotubes ◽  
Vertically Aligned

IrO2 nanocrystals (NCs) were grown on vertically aligned carbon nanotubes (CNTs) forming IrO2/CNTs nanocomposites by metal organic chemical vapor deposition using (C6H7)(C8H12)Ir as a source reagent. The surface morphology, structural and spectroscopic properties of the nanocomposites were characterized. Micrographs of field-emission scanning electron microscope showed that the surface morphology of the as-deposited IrO2 NCs varied from particle-like to tube-like NCs as the deposition time increased from 5 to 60 min. The transmission electron microscope image of IrO2/CNTs nanocomposites revealed that IrO2 NCs had been deposited onto the surface of the CNTs with uniform size distribution and random directions. X-ray diffraction pattern confirmed the formation of pure rutile IrO2 NCs on CNTs. The redshifts of the peak positions and broadening of linewidths of the IrO2 Raman features were attributed mainly to the size effect. The particles-like IrO2 NCs may be used as a protective layer on CNTs, providing stable and uniform field emission application. While the nanotube-like structure may increase the surface-to-volume ratio which makes the IrO2/CNTs nanocomposites as an attractive candidate for the supercapacitor application.

Field emission triode amplifier utilizing aligned carbon nanotubes

2005 ◽  
Vol 14 (11-12) ◽  
pp. 2069-2073 ◽  
Author(s):  
Y.M. Wong ◽  
W.P. Kang ◽  
J.L. Davidson ◽  
B.K. Choi ◽  
W. Hofmeister ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Aligned Carbon Nanotubes

Controlling growth and field emission property of aligned carbon nanotubes on porous silicon substrates

1999 ◽  
Vol 75 (4) ◽  
pp. 481-483 ◽  
Author(s):  
Dongsheng Xu ◽  
Guolin Guo ◽  
Linlin Gui ◽  
Youqi Tang ◽  
Zujin Shi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Silicon ◽  
Field Emission ◽  
Emission Property ◽  
Field Emission Property ◽  
Silicon Substrates ◽  
Aligned Carbon Nanotubes
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