Effect of plasma parameters on growth and field emission of electrons from cylindrical metallic carbon nanotube surfaces

2011 ◽  
Vol 18 (8) ◽  
pp. 083503 ◽  
Author(s):  
Suresh C. Sharma ◽  
Aarti Tewari
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Plasma Parameters ◽  
Field Emission Of Electrons

Field emission of electrons by carbon nanotube twist-yarns

2007 ◽  
Vol 88 (4) ◽  
pp. 593-600 ◽  
Author(s):  
Al.A. Zakhidov ◽  
R. Nanjundaswamy ◽  
A.N. Obraztsov ◽  
M. Zhang ◽  
S. Fang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Field Emission Of Electrons

scholarly journals Field emission of electrons from a Cs-doped single carbon nanotube of known chiral indices

2006 ◽  
Vol 89 (26) ◽  
pp. 263113 ◽  
Author(s):  
Gongpu Zhao ◽  
Qi Zhang ◽  
Han Zhang ◽  
Guang Yang ◽  
Otto Zhou ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Field Emission Of Electrons

Theoretical investigations on the effect of different plasmas on growth and field emission properties of a spherical carbon nanotube (CNT) tip placed over cylindrical surfaces

2013 ◽  
Vol 79 (5) ◽  
pp. 939-948 ◽  
Author(s):  
AARTI TEWARI ◽  
SURESH C. SHARMA
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Discharge Plasma ◽  
Glow Discharge Plasma ◽  
Large Radius ◽  
Plasma Parameters ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Spherical Carbon ◽  
Theoretical Investigations

AbstractThe theoretical investigations on the effect of different plasmas on the growth and field emission properties of a spherical carbon nanotube (CNT) tip placed over cylindrical CNT surfaces have been carried out for the typical glow discharge plasma parameters. Different plasmas such as H2, Ar, CH4 and CF4 have been considered, and the growth of the CNT in the presence of various plasmas has been estimated in the present investigation. This study suggests that the field emission from the CNT grown in the presence of the H2 plasma is largest. It is also found that amongst the plasmas considered, the CF4 plasma is the most favourable for the growth of the large radius CNT, since the radius achieved in the CF4 plasma is the largest.

Enhanced Field Emission Properties of Carbon Nanotube Based Field Emitters by Dynamic Oxidation

2013 ◽  
Vol 9 (5) ◽  
pp. 619-623 ◽  
Author(s):  
Shama Parveen ◽  
Samina Husain ◽  
Avshish Kumar ◽  
Javid Ali ◽  
Mubashshir Husain ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Field Emitters ◽  
Dynamic Oxidation

The fabrication and operation of fully printed Carbon nanotube field emission displays

2006 ◽  
Vol 37 (6) ◽  
pp. 495-499 ◽  
Author(s):  
Fan-Guang Zeng ◽  
Chang-Chun Zhu ◽  
Weihua Liu ◽  
Xinghui Liu
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Field Emission Displays

scholarly journals Optically Induced Field-Emission Source Based on Aligned Vertical Carbon Nanotube Arrays

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1810
Author(s):  
Mengjie Li ◽  
Qilong Wang ◽  
Ji Xu ◽  
Jian Zhang ◽  
Zhiyang Qi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Field Emission ◽  
Field Enhancement ◽  
Absorption Efficiency ◽  
Photon Absorption ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays ◽  
Induced Field ◽  
Optically Induced

Due to the high field enhancement factor and photon-absorption efficiency, carbon nanotubes (CNTs) have been widely used in optically induced field-emission as a cathode. Here, we report vertical carbon nanotube arrays (VCNTAs) that performed as high-density electron sources. A combination of high applied electric field and laser illumination made it possible to modulate the emission with laser pulses. When the bias electric field and laser power density increased, the emission process is sensitive to a power law of the laser intensity, which supports the emission mechanism of optically induced field emission followed by over-the-barrier emission. Furthermore, we determine a polarization dependence that exhibits a cosine behavior, which verifies the high possibility of optically induced field emission.

Sign in / Sign up

Export Citation Format

Share Document