Characterization and field emission properties of multi-walled carbon nanotubes with fine crystallinity prepared by CO2 laser ablation

2012 ◽  
Vol 258 (18) ◽  
pp. 6958-6962 ◽  
Author(s):  
Ryota Yuge ◽  
Kiyohiko Toyama ◽  
Toshinari Ichihashi ◽  
Tetsuya Ohkawa ◽  
Yasushi Aoki ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Laser Ablation ◽  
Field Emission ◽  
Co2 Laser ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Co2 Laser Ablation

Field emission properties of laser ablated multi-walled carbon nanotubes

2018 ◽  
Vol 32 (19) ◽  
pp. 1840045
Author(s):  
Pankaj Koinkar ◽  
Yu Ohsumi ◽  
Makoto Kanazawa ◽  
Akihiro Furube ◽  
Dnyaneshwar Gavhane ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Laser Ablation ◽  
Field Emission ◽  
Emission Characteristics ◽  
Emission Properties ◽  
Ablation Time ◽  
Field Emission Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

In the present study, the field emission properties of multi-walled carbon nanotubes (MWCNTs) treated with laser ablation have been investigated. The MWCNTs were synthesized by chemical vapor deposition method. The laser ablation treatment was performed in liquid medium for laser ablation time of 40 min and 60 min. The morphology of MWCNTs films was characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Raman spectroscopy. The results exhibit that the field emission properties of MWCNTs are dependent on the laser ablation time. The Raman spectra of laser-ablated MWCNTs clearly showed disorder and increase in graphitic content. The SEM and TEM results clearly revealed the separation of MWCNTs after laser ablation treatment. The field emission characteristics of the MWCNTs showed that the turn-on fields and current density are improved for the nanotubes treated with laser ablation. The enhancement in the field emission characteristics of MWCNTs is attributed to the disorder as well as the increase in the aspect ratio which causes more pathways for electron emission.

Improved Field Emission Properties of Ag-Decorated Multi-Walled Carbon Nanotubes

2013 ◽  
Vol 25 (11) ◽  
pp. 1017-1019 ◽  
Author(s):  
Z. D. Lin ◽  
Sheng-Joue Young ◽  
Chih-Hung Hsiao ◽  
Shoou-Jinn Chang ◽  
C. S. Huang
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Optimization of field emission properties from multi-walled carbon nanotubes using ceramic fillers

2008 ◽  
Vol 93 (2) ◽  
pp. 511-516 ◽  
Author(s):  
Jong-Hyun Lee ◽  
Parlindungan Yonathan ◽  
Hyun-Tae Kim ◽  
Dang-Hyok Yoon ◽  
Jaemyung Kim
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Ceramic Fillers ◽  
Walled Carbon Nanotubes
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