Szczegóły

Tytuł artykułu

Preparation and noise analysis of polymer graphite cathode

Tytuł czasopisma

Metrology and Measurement Systems

Wolumin

vol. 25

Numer

No 3

Autorzy publikacji

Słowa kluczowe

field emission ; polymer graphite ; noise analysis

Wydział PAN

Nauki Techniczne

Zakres

451-458

Abstrakt

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.

Wydawca

Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation

Data

2018.10.01

Typ

Artykuły / Articles

Identyfikator

ISSN 0860-8229

DOI

10.24425/123895

×