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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/FW03010504" target="_blank" >FW03010504: Vývoj in-situ technik pro charakterizaci materiálů a nanostruktur</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů