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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%2F68081731%3A_____%2F22%3A00568406" target="_blank" >RIV/68081731:_____/22:00568406 - 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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10303 - Particles and field physics

Result continuities

  • Project

  • 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

    1994-7607

  • e-ISSN

    1994-7615

  • 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