Improving the Performance of Field Electron Emission from Carbon Fiber Emitters with an Epoxy Resin 478 Coating Layer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F24%3A00617419" target="_blank" >RIV/68081731:_____/24:00617419 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10652482" target="_blank" >https://ieeexplore.ieee.org/document/10652482</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/IVNC63480.2024.10652482" target="_blank" >10.1109/IVNC63480.2024.10652482</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improving the Performance of Field Electron Emission from Carbon Fiber Emitters with an Epoxy Resin 478 Coating Layer

Popis výsledku v původním jazyce

The aim of this research is to investigate the differences in behavior and characteristics of electron beams emitted from carbon fiber tips before and after coating their surfaces with a thin layer of epoxy resin 478. Several field electron emission characteristics have been investigated measured under high vacuum (HV) conditions, before and after coating by dielectric materials. The measurements recorded involve current-voltage (I-V) characteristics) as well as spatial current distributions (electron emission images). Furthermore, the surface morphology and chemical composition of the emitters were thoroughly examined utilising a Scanning Electron Microscope with Energy-Dispersive X-ray Spectroscopy (SEM-EDS). The results show significant variations in the emission mechanisms between clean and composite emitters. In particular, the emitters coated with epoxy resin 478 demonstrated an important improvement in the emission characteristics, such as enhanced emission current density and the stability of the emitted current. These results demonstrate how well the insulating layer works to enhance the efficiency of electron emitters fabricated from carbon fiber.

Název v anglickém jazyce

Improving the Performance of Field Electron Emission from Carbon Fiber Emitters with an Epoxy Resin 478 Coating Layer

Popis výsledku anglicky

The aim of this research is to investigate the differences in behavior and characteristics of electron beams emitted from carbon fiber tips before and after coating their surfaces with a thin layer of epoxy resin 478. Several field electron emission characteristics have been investigated measured under high vacuum (HV) conditions, before and after coating by dielectric materials. The measurements recorded involve current-voltage (I-V) characteristics) as well as spatial current distributions (electron emission images). Furthermore, the surface morphology and chemical composition of the emitters were thoroughly examined utilising a Scanning Electron Microscope with Energy-Dispersive X-ray Spectroscopy (SEM-EDS). The results show significant variations in the emission mechanisms between clean and composite emitters. In particular, the emitters coated with epoxy resin 478 demonstrated an important improvement in the emission characteristics, such as enhanced emission current density and the stability of the emitted current. These results demonstrate how well the insulating layer works to enhance the efficiency of electron emitters fabricated from carbon fiber.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

2024 37th International Vacuum Nanoelectronics Conference, IVNC 2024

ISBN

979-8-3503-7977-8

ISSN

2164-2370

e-ISSN

—

Počet stran výsledku

2

Strana od-do

90-91

Název nakladatele

IEEE

Místo vydání

New York

Místo konání akce

Brno

Datum konání akce

15. 7. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001310530600060