WO3-Coated Tungsten Emitters: From Surface Treatment to Emission Properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F25%3A00646146" target="_blank" >RIV/68081731:_____/25:00646146 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26220/26:0199381
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
WO3-Coated Tungsten Emitters: From Surface Treatment to Emission Properties
Original language description
KOŠELOVÁ, Z., ALLAHAM, M. M., BURDA, D., FOHLEROVÁ, Z., KNÁPEK, A. WO3-Coated Tungsten Emitters: From Surface Treatment to Emission Properties. In: OTÁHAL, A., KNÁPEK, A., SKÁCEL, J., NOVOTNÁ, V., eds. IMAPS Flash Conference. 11th International Microelectronics Assembly and Packaging Society Flash Conference. Brno: Brno University of Technology, FEEC, 2025, č. 25, s. 45-46. ISBN 978-80-214-6369-1. This study examines the effect of applying a WO3 dielectric layer, several hundred nanometres thick, to the apex of tungsten field emitters. Such coatings are designed to reinforce emission stability and extend emitter lifetime, surpassing the performance of bare tungsten tips. Nonetheless, applying high extraction voltages can lead to thermal stress or explosive electron emission, causing the tip to melt or reshape due to quasi-plasma formation. We investigate whether such reshaped tips, formed through partial evaporation, can present advantages over pristine geometries by stabilizing electron emission and enhancing operational parameters.
Czech name
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Czech description
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Project
<a href="/en/project/VK01010026" target="_blank" >VK01010026: Development of innovative diffractive devices for advanced security of products, valuables and documents</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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