- Tytuł:
- Preparation and noise analysis of polymer graphite cathode
- Autorzy:
-
Knápek, A.
Horáček, M.
Chlumská, J.
Kuparowitz, T.
Sobola, D.
Šikula, J. - Powiązania:
- https://bibliotekanauki.pl/articles/220760.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
field emission
polymer graphite
noise analysis - Opis:
- The paper deals with the preparation and measurement of an experimental polymer graphite cathode that seems to be a promising and cheap source of electrons utilizing cold field-emission in high- and ultra-high vacuum. Polymer graphite seems to be a proper material as it contains a large amount of hybridized carbon with a low degree of surface oxidation and silicon monoxide (SiO). Within the frame of this work, a special experimental method of tip preparation has been designed and tuned. This method is based on ion milling inside a dual-beam electron microscope enabling to obtain ultra-sharp tips of a diameter smaller than 100 nm with a predefined opening angle. The charge transport within experimental samples is evaluated based on results provided by the noise spectroscopy of the total emission current in the time and frequency domains.
- Źródło:
-
Metrology and Measurement Systems; 2018, 25, 3; 451-458
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł