Field Electron Emission Characteristics of Tungsten-Polyethylene Composite Material As a Source of Electron Emission
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU150323" target="_blank" >RIV/00216305:26620/22:PU150323 - isvavai.cz</a>
Result on the web
<a href="https://journals.yu.edu.jo/jjp/JJPIssues/Vol15No5pdf2022/11.html" target="_blank" >https://journals.yu.edu.jo/jjp/JJPIssues/Vol15No5pdf2022/11.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.47011/15.5.11" target="_blank" >10.47011/15.5.11</a>
Alternative languages
Result language
angličtina
Original language name
Field Electron Emission Characteristics of Tungsten-Polyethylene Composite Material As a Source of Electron Emission
Original language description
This work provides an experimental study on the effects of polyethylene coating on the field electron emission characteristics of clean (uncoated) tungsten tips. Several tungsten tips, with different apex radii, have been prepared, coated with different thicknesses of polyethylene layers and then examined using a standard field electron emission microscope. Various field electron emission characteristics have been measured under high-vacuum conditions. These include current-voltage characteristics, Fowler-Nordheim plots, scanning electron micrographs and spatial current distributions (electron -emission images). Based on this work, it is proved that coating tungsten tips with polyethylene layers has caused dramatic improvements on the tip emission properties. In particular, coating the tips improves the current-voltage characteristics, which is reflected in lowering the extraction voltage, getting more stable emission currents, expressing the current-voltage characteristics using Fowler-Nordheim plots and finally, the spatial distributions of the emitted electrons for the coated tips are more stable and uniform.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Jordan Journal of Physics
ISSN
1994-7615
e-ISSN
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Volume of the periodical
15
Issue of the periodical within the volume
5
Country of publishing house
JO - JORDAN
Number of pages
9
Pages from-to
537-545
UT code for WoS article
000964490000011
EID of the result in the Scopus database
2-s2.0-85147506236