Electron Emission from Gated Diamond Emitter Array

1998 ◽  
Vol 509 ◽  
Author(s):  
Seung -Chul Ha ◽  
Dae-Hwan Kang ◽  
Byung-Sung Kim ◽  
Seok-Hong Min ◽  
Ki-Bum Kim
Keyword(s):  
Electron Emission ◽  
Silicon Substrate ◽  
Current Level ◽  
Selective Deposition ◽  
Processing Scheme ◽  
Electrode Layer ◽  
Field Emitter ◽  
Field Emitter Arrays ◽  
Emitter Array ◽  
Novel Processing

AbstractA novel processing sequence for the formation of gated diamond field emitter arrays (triode system) is proposed and the feasibility is tested by investigating the field emission property. The processing scheme is based on the selective deposition of diamond using the well established nucleation enhanced process on silicon substrate, so called bias enhanced nucleation (BEN). Selective deposition of diamond using the same process was also demonstrated on titanium nitride (TIN) electrode layer. Our preliminary results show that the diamond field emitter is turned on at around 97 V/μm with the current level of about several μA.

Gold Overcoatings on Spindt-Type Field Emitter Arrays

1996 ◽  
Vol 424 ◽  
Author(s):  
S. L. Skala ◽  
D. A. Ohlberg ◽  
A. A. Talin ◽  
T. E. Felter
Keyword(s):  
Electron Emission ◽  
Current Noise ◽  
Gold Deposition ◽  
Field Emitter ◽  
Emission Properties ◽  
Turn On ◽  
Field Emitter Arrays ◽  
Before And After ◽  
Emitter Array ◽  
Field Emitter Array

ABSTRACTThe electron emission properties of a Spindt-type field emitter array have been measured before and after deposition of approximately 100 Å of gold. The workfunction of the emitter decreased by 5% after gold deposition resulting in an 11% reduction in turn-on voltage. Emission stability as measured by RMS current noise improved by 40%. Improvements in emission do not withstand exposure to air. However, baking at moderate temperatures (200°C) restores the emission improvements obtained with the gold overcoating. Fowler-Nordheim plots show that the enhanced emission after baking is due to a increase of the Fowler-Nordheim intercept and not a decrease in slope. Additionally, the gold over coatings resist poisoning as a 50,000 L dose of oxygen only slightly affects emission.

scholarly journals Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser Ablation

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3244
Author(s):  
Jiuzhou Zhao ◽  
Zhenjun Li ◽  
Matthew Thomas Cole ◽  
Aiwei Wang ◽  
Xiangdong Guo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Laser Ablation ◽  
High Performance ◽  
Low Cost ◽  
Field Emitter ◽  
Beam Focusing ◽  
Field Emitter Arrays ◽  
Emitter Array ◽  
Field Emitter Array ◽  
Tip Radius

The nanocone-shaped carbon nanotubes field-emitter array (NCNA) is a near-ideal field-emitter array that combines the advantages of geometry and material. In contrast to previous methods of field-emitter array, laser ablation is a low-cost and clean method that does not require any photolithography or wet chemistry. However, nanocone shapes are hard to achieve through laser ablation due to the micrometer-scale focusing spot. Here, we develop an ultraviolet (UV) laser beam patterning technique that is capable of reliably realizing NCNA with a cone-tip radius of ≈300 nm, utilizing optimized beam focusing and unique carbon nanotube–light interaction properties. The patterned array provided smaller turn-on fields (reduced from 2.6 to 1.6 V/μm) in emitters and supported a higher (increased from 10 to 140 mA/cm2) and more stable emission than their unpatterned counterparts. The present technique may be widely applied in the fabrication of high-performance CNTs field-emitter arrays.

Laser-induced surface cleaning of molybdenum field emitter arrays for enhanced electron emission

2003 ◽  
Vol 82 (19) ◽  
pp. 3299-3301 ◽  
Author(s):  
D. S. Seo ◽  
C. O. Kim ◽  
J. P. Hong ◽  
J. S. Shin ◽  
B. K. Song ◽  
...  
Keyword(s):  
Electron Emission ◽  
Surface Cleaning ◽  
Field Emitter ◽  
Field Emitter Arrays

scholarly journals The effect of Pd coating on electron emission from silicon field emitter arrays

2000 ◽  
Vol 87 (10) ◽  
pp. 7349-7353 ◽  
Author(s):  
Jong-Lam Lee ◽  
Sang Pyo Oh ◽  
Sang Youn Han ◽  
Seung-Youl Kang ◽  
Jin Ho Lee ◽  
...  
Keyword(s):  
Electron Emission ◽  
Field Emitter ◽  
Field Emitter Arrays ◽  
Effect Of Pd

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.

Pulsed Laser Deposition of Diamond-Like Carbon Films on Gated Si Field Emitter Arrays for Improved Electron Emission

1999 ◽  
Vol 38 (Part 1, No. 12B) ◽  
pp. 7208-7212 ◽  
Author(s):  
Oguz Yavas ◽  
Takeshi Hashimoto ◽  
Naoki Suzuki ◽  
Mikio Takai ◽  
Michihiro Kobayashi ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Electron Emission ◽  
Pulsed Laser ◽  
Carbon Films ◽  
Laser Deposition ◽  
Diamond Like Carbon ◽  
Field Emitter ◽  
Field Emitter Arrays
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