Carbon nanotube/nanodiamond structures: An innovative concept for stable and ready-to-start electron emitters

2009 ◽  
Vol 95 (22) ◽  
pp. 222113 ◽  
Author(s):  
V. Guglielmotti ◽  
S. Chieppa ◽  
S. Orlanducci ◽  
E. Tamburri ◽  
F. Toschi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electron Emitters ◽  
Innovative Concept

Field electron emitters from carbon nanotube films on diamond films

2005 ◽  
Author(s):  
Wan L. Wang ◽  
K. J. Liao ◽  
Y.T. Wang ◽  
J. W. Lu ◽  
P. Xiao
Keyword(s):  
Carbon Nanotube ◽  
Diamond Films ◽  
Field Electron ◽  
Electron Emitters ◽  
Nanotube Films

Carbon-nanotube electron emitters for display applications

2005 ◽  
Vol 13 (9) ◽  
pp. 709 ◽  
Author(s):  
Ajita Patil ◽  
Linchung Li ◽  
Liming Dai ◽  
Michael Casavant ◽  
Karla Strong
Keyword(s):  
Carbon Nanotube ◽  
Electron Emitters

X-ray source downscaling enabled by combining microfabricated electrodes with carbon nanotube cold electron emitters

2014 ◽  
Vol 122 ◽  
pp. 13-19 ◽  
Author(s):  
Christian Kottler ◽  
Rémi Longtin ◽  
Sandra Giudice ◽  
Rony Jose-James ◽  
Philippe Niedermann ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Cold Electron ◽  
X Ray ◽  
Electron Emitters

Carbon nanotube electron emitters with a gated structure using backside exposure processes

2002 ◽  
Vol 80 (21) ◽  
pp. 4045-4047 ◽  
Author(s):  
Deuk-Seok Chung ◽  
S. H. Park ◽  
H. W. Lee ◽  
J. H. Choi ◽  
S. N. Cha ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electron Emitters

scholarly journals Performance of a Low Energy Ion Source with Carbon Nanotube Electron Emitters under the Influence of Various Operating Gases

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 354 ◽  
Author(s):  
Huzhong Zhang ◽  
Detian Li ◽  
Peter Wurz ◽  
Adrian Etter ◽  
Yongjun Cheng ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Ion Source ◽  
Low Energy ◽  
Ion Current ◽  
Electron Field Emission ◽  
Mass Spectrometers ◽  
Electron Field ◽  
Electron Emitters ◽  
Different Gases

Low energy ion measurements in the vicinity of a comet have provided us with important information about the planet’s evolution. The calibration of instruments for thermal ions in the laboratory plays a crucial role when analysing data from in-situ measurements in space. A new low energy ion source based on carbon nanotube electron emitters was developed for calibrating the ion-mode of mass spectrometers or other ion detectors. The electron field emission (FE) properties of carbon nanotubes (CNTs) for H2, He, Ar, O2, and CO2 gases were tested in the experiments. H2, He, Ar, and CO2 adsorbates could change the FE temporarily at pressures from10−6 Pa to10−4 Pa. The FE of CNT remains stable in Ar and increases in H2, but degrades in He, O2, and CO2. All gas adsorbates lead to temporary degradation after working for prolonged periods. The ion current of the ion source is measured by using a Faraday cup and the sensitivity is derived from this measurement. The ion currents for the different gases were around 10 pA (corresponding to 200 ions/cm3 s) and an energy of ~28 eV could be observed.

scholarly journals Fabrication of Stable Carbon Nanotube Cold Cathode Electron Emitters with Post-Growth Electrical Aging

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 648 ◽  
Author(s):  
Jung Hyun Kim ◽  
Jung Su Kang ◽  
Kyu Chang Park
Keyword(s):  
Carbon Nanotube ◽  
Electron Emission ◽  
Emission Current ◽  
Cold Cathode ◽  
Time Stability ◽  
Field Emitters ◽  
Initial Stage ◽  
Electrical Aging ◽  
Long Time ◽  
Electron Emitters

We fabricated carbon nanotube (CNT) cold cathode emitters with enhanced and stable electron emission properties and long-time stability with electrical aging as a post-treatment. Our CNT field emitters showed improved electrical properties by electrical aging. We set the applied bias for effective electrical aging, with the bias voltage defined at the voltage where Joule heating appeared. At the initial stage of aging, the electron emission current started to increase and then was saturated within 3 h. We understood that 5 h aging time was enough at proper aging bias. If the aging bias is higher, excessive heating damages CNT emitters. With the electrical aging, we obtained improved electron emission current from 3 mA to 6 mA. The current of 6 mA was steadily driven for 9 h.

Highly reliable field electron emitters produced from reproducible damage-free carbon nanotube composite pastes with optimal inorganic fillers

2014 ◽  
Vol 25 (6) ◽  
pp. 065201 ◽  
Author(s):  
Jae-Woo Kim ◽  
Jin-Woo Jeong ◽  
Jun-Tae Kang ◽  
Sungyoul Choi ◽  
Seungjoon Ahn ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Free Carbon ◽  
Field Electron ◽  
Inorganic Fillers ◽  
Carbon Nanotube Composite ◽  
Electron Emitters
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