Electron emission from phosphorus- and boron-doped polycrystalline diamond films

1995 ◽  
Vol 31 (1) ◽  
pp. 74-75 ◽  
Author(s):  
K. Okano ◽  
K.K. Gleason
Keyword(s):  
Electron Emission ◽  
Diamond Films ◽  
Polycrystalline Diamond ◽  
Boron Doped

Electrical Characteristics and Annealing Study of Boron‐Doped Polycrystalline Diamond Films

1995 ◽  
Vol 142 (12) ◽  
pp. L223-L225 ◽  
Author(s):  
Sheng‐Hsiung Chen ◽  
Shen‐Li Chen ◽  
Ming‐Hsing Tsai ◽  
J. J. Shyu ◽  
Chia‐Fu Chena
Keyword(s):  
Diamond Films ◽  
Polycrystalline Diamond ◽  
Electrical Characteristics ◽  
Boron Doped ◽  
Annealing Study

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 from Boron Doped Diamond Films Grown by MPCVD

2013 ◽  
Vol 28 (5) ◽  
pp. 688-692
Author(s):  
丁明清 DING Ming-qing ◽  
李莉莉 LI Li-li ◽  
冯进军 FENG Jin-jun
Keyword(s):  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Diamond Films ◽  
Boron Doped Diamond ◽  
Boron Doped

Characterization of undoped and boron-doped polycrystalline diamond films synthesized by hot-filament chemical vapor deposition using methanol

1994 ◽  
Vol 3 (4-6) ◽  
pp. 618-622 ◽  
Author(s):  
Takashi Sugino ◽  
Kiyoshi Karasutani ◽  
Fumihiro Mano ◽  
Hiroya Kataoka ◽  
Junji Shirafuji ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Diamond Films ◽  
Chemical Vapor ◽  
Polycrystalline Diamond ◽  
Boron Doped ◽  
Hot Filament

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.

The Microstructure and Enhanced Field Electron Emission Properties of Boron-Doped Nanocrystalline Diamond Films by Microwave Plasma Chemical Vapor Deposition

2010 ◽  
Vol 152-153 ◽  
pp. 413-417
Author(s):  
You Sheng Zou ◽  
Zheng Xue Li ◽  
Hao Yang
Keyword(s):  
Electron Emission ◽  
Microwave Plasma ◽  
Diamond Films ◽  
Field Electron Emission ◽  
Nanocrystalline Diamond ◽  
Gas Mixture ◽  
Emission Properties ◽  
Boron Doped ◽  
Field Electron ◽  
Nanocrystalline Diamond Films

The boron-doped nanocrystalline diamond films were prepared on Si(100) substrates by microwave plasma chemical vapor deposition in gas mixture of CH4/H2/trimethylboron (TMB) with B/C ratio in the range of 0-1900ppm. The dependencies of surface morphology, microstructure, phase composition and field electron emission properties on the B/C ratio were systematically investigated by scanning electron microscope, X-ray diffractometer, visible and UV Raman spectroscopy. The results show that the diamond grains gather together forming ball-like clusters with inhomogeneous size, the doped boron atoms can promote the growth of plane (111) surface and terminate the diamond growth sites, resulting in the reduction of growth rate with the increase of B/C ratio in the gas mixture. The two peaks located at approximately 500 and 1220cm-1 resulted from Fano interference were observed in the visible Raman spectra for the heavily boron-doped nanocrystalline diamond film, and the sp2/sp3 ratio of carbon bonds increased with B/C ratio increasing in gas mixture. The field electron emission performances of the boron-doped nanocrystalline diamond films were obviously dependent on B/C ratio in the gas mixture, and boron doping can improve their field electron emission properties remarkably. The low turn-on electric field of 7.6V/μm was achieved for the boron-doped nanocrystalline diamond film deposited at B/C ratio of 1900ppm.

Effect of Oxygen Coverage on Electron Emission from Boron-Doped Polycrystalline Diamond

2001 ◽  
Vol 40 (Part 2, No. 8A) ◽  
pp. L829-L831 ◽  
Author(s):  
Takatoshi Yamada ◽  
Ken-ichi Kanda ◽  
Ken Okano ◽  
Atsuhito Sawabe
Keyword(s):  
Electron Emission ◽  
Polycrystalline Diamond ◽  
Boron Doped ◽  
Oxygen Coverage ◽  
Effect Of Oxygen

Electrical characterization of Al/Si ohmic contacts to heavily boron doped polycrystalline diamond films

1996 ◽  
Vol 79 (5) ◽  
pp. 2535-2541 ◽  
Author(s):  
M. Werner ◽  
C. Johnston ◽  
P. R. Chalker ◽  
S. Romani ◽  
I. M. Buckley‐Golder
Keyword(s):  
Ohmic Contacts ◽  
Diamond Films ◽  
Electrical Characterization ◽  
Polycrystalline Diamond ◽  
Boron Doped
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