Carbon nanotubes are coherent electron sources

1997 ◽  
Vol 70 (20) ◽  
pp. 2679-2680 ◽  
Author(s):  
Heinz Schmid ◽  
Hans-Werner Fink
Keyword(s):  
Carbon Nanotubes ◽  
Electron Sources

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.

Carbon Nanotubes for Cold Electron Sources

2003 ◽  
Vol 5 (8) ◽  
pp. 541-550 ◽  
Author(s):  
P. Gröning ◽  
P. Ruffieux ◽  
L. Schlapbach ◽  
O. Gröning
Keyword(s):  
Carbon Nanotubes ◽  
Cold Electron ◽  
Electron Sources

DIRECT GROWTH OF MULTI-WALLED CARBON NANOTUBES ON SHARP TIPS FOR ELECTRON MICROSCOPY

NANO ◽  
2006 ◽  
Vol 01 (01) ◽  
pp. 35-39 ◽  
Author(s):  
M. MANN ◽  
K. B. K. TEO ◽  
W. I. MILNE ◽  
T. TESSNER
Keyword(s):  
Carbon Nanotubes ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Vertical Axis ◽  
Electron Sources ◽  
Multi Walled Carbon Nanotubes ◽  
Direct Growth ◽  
Walled Carbon Nanotubes ◽  
Excellent Stability ◽  
Walled Cnts

The favorable electron optical properties of carbon nanotubes (CNTs) have been studied in detail, but the application to electron sources has been limited by the complexity of the fabrication process. We report the use of Plasma Enhanced Chemical Vapor Deposition (PECVD) for the direct deposition of multi-walled CNTs onto the apex of sharply etched tungsten tips, aligned to the vertical axis of the tips. We show that these emitters have excellent stability.

Carbon nanotubes as electron sources

2006 ◽  
Vol 203 (6) ◽  
pp. 1058-1063 ◽  
Author(s):  
W. I. Milne ◽  
K. B. K. Teo ◽  
M. Mann ◽  
I. Y. Y. Bu ◽  
G. A. J. Amaratunga ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Sources

Tailoring point electron sources of individual carbon nanotubes

2010 ◽  
Vol 97 (7) ◽  
pp. 073119 ◽  
Author(s):  
Yung-Chang Lin ◽  
Cheng-Da Wu ◽  
Po-Wen Chiu
Keyword(s):  
Carbon Nanotubes ◽  
Electron Sources

Field emission from carbon nanotubes and its application to electron sources

Carbon ◽  
2000 ◽  
Vol 38 (2) ◽  
pp. 169-182 ◽  
Author(s):  
Yahachi Saito ◽  
Sashiro Uemura
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Electron Sources

scholarly journals ELECTRON EMISSION FROM CARBON NANOTUBES

2007 ◽  
Vol 21 (27) ◽  
pp. 1807-1830 ◽  
Author(s):  
PARHAM YAGHOOBI ◽  
ALIREZA NOJEH
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Transport ◽  
Electron Sources ◽  
The Past ◽  
Area Of Interest ◽  
Promising Area ◽  
Current Densities ◽  
The Subject ◽  
Tip Radius ◽  
Significant Attention

Carbon nanotubes, nanometer-diameter tubes made of carbon atoms, have garnered significant attention from researchers over the past 15 years due to their outstanding properties such as excellent electronic transport characteristics and mechanical strength. Because of their ability to carry extremely high current densities, their high aspect ratio, and small tip radius that enhances an external electric field greatly, one particularly promising area of interest has been the usage of nanotubes as electron sources. In this article we will try to provide an overview of the subject from various experimental and theoretical angles.

Honeycomb arrays of carbon nanotubes in alumina templates for field emission based devices and electron sources

2010 ◽  
Vol 42 (5) ◽  
pp. 1469-1476 ◽  
Author(s):  
R. Angelucci ◽  
I. Boscolo ◽  
A. Ciorba ◽  
M. Cuffiani ◽  
L. Malferrari ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Electron Sources
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