Graphene Nanotubule Cold Field Emission Electron Sources

1994 ◽  
Vol 349 ◽  
Author(s):  
B. H. Fishbine ◽  
C. J. Miglionico ◽  
K. E. Hackett ◽  
K. J. Hendricks
Keyword(s):  
Field Emission ◽  
Current Density ◽  
High Current Density ◽  
High Current ◽  
Field Emitter ◽  
Electron Sources ◽  
Field Emitter Arrays ◽  
Emission Electron ◽  
Emitter Array ◽  
Field Emitter Array

ABSTRACTBuckytubes are considered for high current density cold field emitter array electron sources. They may provide more stable, higher-brightness emission than existing cold field emitter arrays.

High current, high current density field emitter array cathodes

2005 ◽  
Vol 23 (2) ◽  
pp. 691 ◽  
Author(s):  
P. R. Schwoebel ◽  
C. A. Spindt ◽  
C. E. Holland
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Density Field ◽  
High Current ◽  
Field Emitter ◽  
Emitter Array ◽  
Field Emitter Array

High-current field emission from a vertically aligned carbon nanotube field emitter array

2001 ◽  
Vol 79 (17) ◽  
pp. 2811-2813 ◽  
Author(s):  
J. T. L. Thong ◽  
C. H. Oon ◽  
W. K. Eng ◽  
W. D. Zhang ◽  
L. M. Gan
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
High Current ◽  
Current Field ◽  
Field Emitter ◽  
Vertically Aligned ◽  
Emitter Array ◽  
Field Emitter Array

High-current-density field emission display fabricated from single-walled carbon nanotube electron sources

2008 ◽  
Vol 42 (3) ◽  
pp. 251-254 ◽  
Author(s):  
P. Zhao ◽  
X. F. Shang ◽  
Y. P. Ma ◽  
J. J. Zhou ◽  
Z. Q. Gu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Current Density ◽  
High Current Density ◽  
Density Field ◽  
High Current ◽  
Field Emission Display ◽  
Single Walled Carbon Nanotube ◽  
Electron Sources ◽  
Single Walled Carbon

NEEDLE CATHODES FOR HIGH-BRIGHTNESS BEAMS

2007 ◽  
Vol 22 (22) ◽  
pp. 3784-3793 ◽  
Author(s):  
C. H. BOULWARE ◽  
J. D. JARVIS ◽  
H. L. ANDREWS ◽  
C. A. BRAU
Keyword(s):  
Field Emission ◽  
Current Density ◽  
High Current Density ◽  
Thermionic Emission ◽  
High Current ◽  
High Brightness ◽  
Electron Sources ◽  
Schottky Effect ◽  
Surface Electric Field ◽  
Very High

At the tips of sharp needles, the surface electric field is enhanced by many orders of magnitude. This intensifies thermionic emission and photoemission of electrons through the Schottky effect, and reduces the effect of space charge. The increased current density improves the brightness of electron sources by orders of magnitude. In addition, at very high fields (>109 V/m ), field emission and photo-field emission produce very high current density. Arrays of needles can be used to achieve high total current.

High-Current-Density Field Emission Electron Source

2010 ◽  
pp. 373-388 ◽  
Author(s):  
Shigeki Kato ◽  
Tsuneyuki Noguchi
Keyword(s):  
Field Emission ◽  
Current Density ◽  
High Current Density ◽  
Electron Source ◽  
Density Field ◽  
High Current ◽  
Emission Electron

Silicon Field Emitter Array by Fast Anodization Method

2000 ◽  
Vol 621 ◽  
Author(s):  
Y.M. Fung ◽  
W.Y. Cheung ◽  
I.H. Wilson ◽  
J.B. Xu ◽  
S.P. Wong
Keyword(s):  
Current Density ◽  
Silicon Oxide ◽  
Emission Current Density ◽  
Field Emitter ◽  
Turn On ◽  
Field Emitter Arrays ◽  
Isotropic Etching ◽  
Field Emitters ◽  
Emitter Array ◽  
Field Emitter Array

ABSTRACTA new fast fabrication method entailing, two step anodization of silicon with different HF solutions was used to form a high aspect ratio silicon Field Emitter Array on n-type silicon (resistivity of 0.01cm). A Silicon oxide mask was used to define the field emitter array. The silicon substrate was pre-anodized with low current density for 1 minute in the dark and then anodized in HF:H2O:Ethanol solution. Finally, the porous silicon was removed by isotropic solution etching. The turn-on voltage of the fabricated field emitters was approximately 27V/μm when the emission current density reaches 1μA/cm2. This compares with the turn-on field of about 35V/μm on silicon tip array fabricated by using an isotropic etching solution of HNO3. We obtained field emitter arrays with good uniformity and reproducibility.

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