Comparative Analysis of the Effect of Polystyrene Coating on the Field Emission Characteristic of Tungsten and Carbon Fiber Emitters

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00642981" target="_blank" >RIV/68081723:_____/25:00642981 - isvavai.cz</a>

Alternative codes found

RIV/68081731:_____/25:00642981 RIV/00216305:26620/26:0200712

Result on the web

<a href="https://jjp.yu.edu.jo/index.php/jjp/article/view/188" target="_blank" >https://jjp.yu.edu.jo/index.php/jjp/article/view/188</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.47011/18.3.8" target="_blank" >10.47011/18.3.8</a>

Result language

angličtina

Original language name

Comparative Analysis of the Effect of Polystyrene Coating on the Field Emission Characteristic of Tungsten and Carbon Fiber Emitters

Original language description

Achieving high initial emission currents at relatively low operating voltages is essential for field electron emission sources utilized in equipment reliant on focused electron beams. Coating these emitters with a dielectric layer has the potential to enlarge their effective emission region, thereby increasing the initial emission current value while simultaneously reducing the operating voltage. This study compares and contrasts the effects of a dielectric polystyrene coating on field electron emission characteristics, drawing on two investigations of polystyrene-coated emitters. The study provides a brief analysis of the field electron emission characteristics obtained from carbon fiber and tungsten emitters, both prepared using electrochemical etching and subsequently coated with polystyrene. Both studies are thoroughly reviewed and contextualized, emphasizing the advantageous attributes of this emitter type. The focus of the study lies in the current-voltage characteristic, Murphy-Good analysis plot, and field electron emission images obtained from both emitters, with particular attention to how the coating influences emissivity. The investigation into the emission characteristics of coated tungsten indicates a significant improvement over coated carbon fiber emitters, with performance enhanced several times.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Jordan Journal of Physics

ISSN

1994-7607

e-ISSN

1994-7615

Volume of the periodical

18

Issue of the periodical within the volume

3

Country of publishing house

JO - JORDAN

Number of pages

15

Pages from-to

349-363

UT code for WoS article

001593327500008

EID of the result in the Scopus database

2-s2.0-105021440627