Field Emission Properties of Polymer Graphite Tips Prepared by Membrane Electrochemical Etching

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F20%3A00531987" target="_blank" >RIV/68081731:_____/20:00531987 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26220/20:PU136750

Výsledek na webu

<a href="https://www.mdpi.com/2079-4991/10/7/1294" target="_blank" >https://www.mdpi.com/2079-4991/10/7/1294</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano10071294" target="_blank" >10.3390/nano10071294</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Field Emission Properties of Polymer Graphite Tips Prepared by Membrane Electrochemical Etching

Popis výsledku v původním jazyce

This paper investigates field emission behavior from the surface of a tip that was prepared from polymer graphite nanocomposites subjected to electrochemical etching. The essence of the tip preparation is to create a membrane of etchant over an electrode metal ring. The graphite rod acts here as an anode and immerses into the membrane filled with alkali etchant. After the etching process, the tip is cleaned and analyzed by Raman spectroscopy, investigating the chemical composition of the tip. The topography information is obtained using the Scanning Electron Microscopy and by Field Emission Microscopy. The evaluation and characterization of field emission behavior is performed at ultra-high vacuum conditions using the Field Emission Microscopy where both the field electron emission pattern projected on the screen and current-voltage characteristics are recorded. The latter is an essential tool that is used both for the imaging of the tip surfaces by electrons that are emitted toward the screen, as well as a tool for measuring current-voltage characteristics that are the input to test field emission orthodoxy.

Název v anglickém jazyce

Field Emission Properties of Polymer Graphite Tips Prepared by Membrane Electrochemical Etching

Popis výsledku anglicky

This paper investigates field emission behavior from the surface of a tip that was prepared from polymer graphite nanocomposites subjected to electrochemical etching. The essence of the tip preparation is to create a membrane of etchant over an electrode metal ring. The graphite rod acts here as an anode and immerses into the membrane filled with alkali etchant. After the etching process, the tip is cleaned and analyzed by Raman spectroscopy, investigating the chemical composition of the tip. The topography information is obtained using the Scanning Electron Microscopy and by Field Emission Microscopy. The evaluation and characterization of field emission behavior is performed at ultra-high vacuum conditions using the Field Emission Microscopy where both the field electron emission pattern projected on the screen and current-voltage characteristics are recorded. The latter is an essential tool that is used both for the imaging of the tip surfaces by electrons that are emitted toward the screen, as well as a tool for measuring current-voltage characteristics that are the input to test field emission orthodoxy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Nanomaterials

ISSN

2079-4991

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

1294

Kód UT WoS článku

000554791000001

EID výsledku v databázi Scopus

2-s2.0-85087397947