From Deformation to Performance: WO3-Coated Tungsten Emitters Created by Anodization

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F24%3A00618980" target="_blank" >RIV/68081731:_____/24:00618980 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
From Deformation to Performance: WO3-Coated Tungsten Emitters Created by Anodization
Original language description
Košelová, Z., Burda, D., Allaham, M. M., Fohlerová, Z., Knápek, A. From Deformation to Performance: WO3-Coated Tungsten Emitters Created by Anodization [poster]. Brno, International Vacuum Nanoelectronics Conference (IVNC) /37./, 15.07.2024-19.07.2024. This study investigates the field emission characteristics of tungsten single-tip field emitters coated with a thin layer of tungsten trioxide (WO3). The WO3 dielectric barrier at the metal-vacuum interface is intended to improve performance by increasing lifetime and current levels. In high voltage applications, there is a risk of emitter tip deformation due to phase transitions with the plasma. However, changing the tip shape through evaporation can provide stability and performance benefits. Our results show that emitters with thicker oxide layers exhibit stable emission characteristics and higher voltage thresholds, suggesting that oxide-coated tungsten tips can effectively improve cold field emission characteristics.
Czech name
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Czech description
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Project
<a href="/en/project/FW03010504" target="_blank" >FW03010504: Development of in-situ techniques for characterization of materials and nanostructures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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