Influence of Polystyrene Layer on the Field Electron Emission Performance of Nano-Apex Carbon Fibre Emitters
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU145833" target="_blank" >RIV/00216305:26620/21:PU145833 - isvavai.cz</a>
Result on the web
<a href="https://www.tandfonline.com/doi/abs/10.1080/2374068X.2021.1938886?journalCode=tmpt20" target="_blank" >https://www.tandfonline.com/doi/abs/10.1080/2374068X.2021.1938886?journalCode=tmpt20</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/2374068X.2021.1938886" target="_blank" >10.1080/2374068X.2021.1938886</a>
Alternative languages
Result language
angličtina
Original language name
Influence of Polystyrene Layer on the Field Electron Emission Performance of Nano-Apex Carbon Fibre Emitters
Original language description
A comprehensive investigation has been carried out to determine the source of an inherent temporal instability in the spatial distribution and the emission current obtained from field electron-emitting carbon fiber tips of type Polyacrylonitrile VPR – 19, thermally treated at 2800 °C. These instability effects have been successfully overcome by coating the carbon fiber tip with a sub-micron layer of polystyrene . The current-voltage characteristics, Fowler-Nordheim plots, Murphy-Good plots and the scanning electron micrographs in addition to the field electron emission patterns were used in this investigation to study the emission characteristics of carbon fiber tips before and after samples are being coated with polystyrene layer. Comparison between the emission process from the clean and composite tips are reported and the current-voltage characteristics were obtained at a threshold field that is a few times lower than that of the clean tip. At low emission current levels linear Fowler-Nordheim and Murphy-Good plots were obtained with a slope value lower than that of the clean tip. The spatial distribution consisted of a very bright spot without any internal structure. These results suggest that a polystyrene coated fiber tip offers better performance than the clean carbon fiber tip as a new field electron emission source.
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
20201 - Electrical and electronic engineering
Result continuities
Project
<a href="/en/project/LM2018110" target="_blank" >LM2018110: CzechNanoLab research infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advances in Materials and Processing Technologies
ISSN
2374-0698
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
19
Pages from-to
„2652“-„2671 “
UT code for WoS article
000663227800001
EID of the result in the Scopus database
2-s2.0-85108182805