The Impact of Diamond Grain Size on Hydrogen Concentration, Bonding Configuration, and Electron Emission Properties of Polycrystalline-Diamond Films

2008 ◽  
Vol 14 (7-8) ◽  
pp. 196-212 ◽  
Author(s):  
Shaul Michaelson ◽  
Orna Ternyak ◽  
Rozalia Akhvlediani ◽  
Alon Hoffman
Keyword(s):  
Grain Size ◽  
Hydrogen Concentration ◽  
Electron Emission ◽  
Diamond Films ◽  
Polycrystalline Diamond ◽  
Emission Properties ◽  
Bonding Configuration ◽  
Diamond Grain ◽  
The Impact

scholarly journals Hydrogen concentration and bonding configuration in polycrystalline diamond films: From micro-to nanometric grain size

2007 ◽  
Vol 102 (11) ◽  
pp. 113516 ◽  
Author(s):  
Sh. Michaelson ◽  
O. Ternyak ◽  
R. Akhvlediani ◽  
A. Hoffman ◽  
A. Lafosse ◽  
...  
Keyword(s):  
Grain Size ◽  
Hydrogen Concentration ◽  
Diamond Films ◽  
Polycrystalline Diamond ◽  
Bonding Configuration

The impact of surface hydrogenation on the thermionic electron emission from polycrystalline diamond films

2014 ◽  
Vol 211 (10) ◽  
pp. 2238-2243 ◽  
Author(s):  
S. Elfimchev ◽  
Sh. Michaelson ◽  
R. Akhvlediani ◽  
M. Chandran ◽  
H. Kaslasi ◽  
...  
Keyword(s):  
Electron Emission ◽  
Diamond Films ◽  
Polycrystalline Diamond ◽  
The Impact ◽  
Thermionic Electron Emission

Secondary electron emission properties of double-layer B-doped diamond films

2020 ◽  
Vol 106 ◽  
pp. 107826 ◽  
Author(s):  
Kongting Wei ◽  
Ruozheng Wang ◽  
Jie Li ◽  
Biye Liu ◽  
Qiang Wei ◽  
...  
Keyword(s):  
Double Layer ◽  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Diamond Films ◽  
Emission Properties

Field Electron Emission from Carbon Nanotube Films on Diamond Films

2005 ◽  
Vol 475-479 ◽  
pp. 3587-3590
Author(s):  
K.J. Liao ◽  
W.L. Wang ◽  
Y.T. Wang ◽  
J.W. Lu ◽  
X.L. Sun
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Field Emission ◽  
Electron Emission ◽  
Diamond Films ◽  
Chemical Vapour ◽  
Polycrystalline Diamond ◽  
Field Electron Emission ◽  
Field Electron ◽  
Nanotube Films

The field electron emission from carbon nanotube films on polycrystalline diamond films was investigated. The carbon nanotubes and diamond films on Si substrates were prepared by a conventional hot filament chemical vapour deposition. The films obtained were characterized by scanning electron microscopy and Raman spectroscopy. The field emission properties of the samples were measured in an ion-pumped vacuum chamber at a pressure of 10-6 Pa.. The experimental results showed that the field emission behaviours of carbon nanotubes/diomond films structure have greatly been improved as compared with carbon nanotubes and diamond films, respectively. A turn-on field of 1.0 V/µm and a maximum current of 500 µA at 1.5 V/µm were observed, which were lower than those of carbon nanotubes and polycrystalline diamond films, respectively. This improvement was attributed to the tip shape of sample surface, which provided an additional local increase in electric field at the tube ends.

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