Electron emission from nanometric apertures in CNTs-based field emission triode structures on silicon substrates

2009 ◽  
Vol 206 (7) ◽  
pp. 1664-1673 ◽  
Author(s):  
Javad Koohsorkhi ◽  
Shamsoddin Mohajerzadeh
Keyword(s):  
Field Emission ◽  
Electron Emission ◽  
Silicon Substrates

Field emission and explosive electron emission processes in vacuum discharges

1983 ◽  
Vol 139 (2) ◽  
pp. 265 ◽  
Author(s):  
E.A. Litvinov ◽  
Gennadii A. Mesyats ◽  
D.I. Proskurovskii
Keyword(s):  
Field Emission ◽  
Electron Emission ◽  
Explosive Electron Emission

scholarly journals Enhanced Field Electron Emission from Photocurrent Treated Nanostructured Indium Oxide Films

2018 ◽  
Vol 228 ◽  
pp. 04003
Author(s):  
Zhenglin Li ◽  
Fuyuan Si ◽  
Miaomiao Wang ◽  
Weigang He ◽  
Yuwei Zhang
Keyword(s):  
Field Emission ◽  
Indium Oxide ◽  
Electron Emission ◽  
Oxide Films ◽  
Field Electron Emission ◽  
Chemical Vapor Deposition Method ◽  
Treatment Technique ◽  
Field Electron ◽  
Ito Glass ◽  
Indium Oxide Films

Field electron emission currents from nanostructured films always have unsatisfied stability. This paper introduces a photocurrent treatment technique to enhance the filed emission properties, and gives a kind of nanostructured indium oxide film suitable for the technique. The products were prepared on patterned ITO glass substrate by using chemical vapor deposition method. With the increase of reaction time, the morphologies of the films changed from cocoonlike particles to hybrid thin films, and finally flowerlike nanostructures were formed. Photocurrent and field electron emission characteristics of the products have been studied. After photocurrent treatment, the flowerlike indium oxide films show stable field emission current (fluctuation is less than 5%), low field emission threshold (at 7.5 V/m, the current density is 1 mA/cm2) and high enhancement factor of electrical field of 778. The field emission test results validated that the photocurrent treated flowerlike indium oxide films may act as electron emitters and applied in display applications.

scholarly journals Carbon Nanotube Electron Sources: From Electron Beams to Energy Conversion and Optophononics

2014 ◽  
Vol 2014 ◽  
pp. 1-23 ◽  
Author(s):  
Alireza Nojeh
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Electron Emission ◽  
Electron Beams ◽  
Thermionic Emission ◽  
Secondary Emission ◽  
Electron Sources ◽  
Field Emitters ◽  
Electron Microscopes ◽  
Electron Emitters

Carbon nanotubes have a host of properties that make them excellent candidates for electron emitters. A significant amount of research has been conducted on nanotube-based field-emitters over the past two decades, and they have been investigated for devices ranging from flat-panel displays to vacuum tubes and electron microscopes. Other electron emission mechanisms from carbon nanotubes, such as photoemission, secondary emission, and thermionic emission, have also been studied, although to a lesser degree than field-emission. This paper presents an overview of the topic, with emphasis on these less-explored mechanisms, although field-emission is also discussed. We will see that not only is electron emission from nanotubes promising for electron-source applications, but also its study could reveal unusual phenomena and open the door to new devices that are not directly related to electron beams.

Fibrous structures on diamond and carbon surfaces formed by hydrogen plasma under direct-current bias and field electron-emission properties

2003 ◽  
Vol 18 (2) ◽  
pp. 305-326 ◽  
Author(s):  
Koji Kobashi ◽  
Takeshi Tachibana ◽  
Yoshihiro Yokota ◽  
Nobuyuki Kawakami ◽  
Kazushi Hayashi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Field Emission ◽  
Direct Current ◽  
Electron Emission ◽  
Microwave Plasma ◽  
Hydrogen Plasma ◽  
Polycrystalline Diamond ◽  
Metal Catalyst ◽  
Direct Current Bias ◽  
Conical Structures

Polycrystalline diamond films, single crystal bulk diamonds, and diamond powder were treated in microwave plasma of hydrogen at 1.6 torr under a negative direct-current bias of −150 to −300 V without metal catalyst. It was found that fibrous structures, uniformly elongated along the direction normal to the specimen surface, were formed on the diamond surfaces. Similar experiments for glasslike carbon resulted in conical structures with frizzy fibers at the tops. Transmission electron microscopy measurements indicated that the fibers formed on diamond consisted of randomly oriented diamond nanocrystals with diameters of less than 10 nm, while the conical structures formed on glasslike carbon consisted of graphite nanocrystals. Field emission measurements of the fibrous specimens exhibited better emission efficiency than untreated ones. The field emission electron microscopy of the fibrous glasslike carbon showed a presence of discrete electron emission sites at a density of approximately 10,000 sites/cm2.

Local field emission features of thick diamond films on various silicon substrates

1999 ◽  
Vol 17 (2) ◽  
pp. 696 ◽  
Author(s):  
A. Göhl ◽  
T. Habermann ◽  
D. Nau ◽  
G. Müller ◽  
V. Raiko ◽  
...  
Keyword(s):  
Field Emission ◽  
Local Field ◽  
Diamond Films ◽  
Silicon Substrates

Controlling growth and field emission property of aligned carbon nanotubes on porous silicon substrates

1999 ◽  
Vol 75 (4) ◽  
pp. 481-483 ◽  
Author(s):  
Dongsheng Xu ◽  
Guolin Guo ◽  
Linlin Gui ◽  
Youqi Tang ◽  
Zujin Shi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Silicon ◽  
Field Emission ◽  
Emission Property ◽  
Field Emission Property ◽  
Silicon Substrates ◽  
Aligned Carbon Nanotubes
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