Publication result detail

Analysing Geometrical Effects on Electric Field Distribution in Silicon-Based Pyramid for Cold Field Emission

KOŠELOVÁ, Z.; KNÁPEK, A.; FOHLEROVÁ, Z.

Original Title

Analysing Geometrical Effects on Electric Field Distribution in Silicon-Based Pyramid for Cold Field Emission

English Title

Analysing Geometrical Effects on Electric Field Distribution in Silicon-Based Pyramid for Cold Field Emission

Type

Paper in proceedings outside WoS and Scopus

Original Abstract

The study presents numerical modeling of cold field emitters (CFEs), specifically silicon pyramids coated with tungsten, using COMSOL Multiphysics. It examines how emitter geometry and surface contaminants impact electric field distribution and emission properties, with emphasis on areas near the emitter tip and along the scintillator edge. Results reveal that even minor changes in tip geometry or contamination can significantly alter field intensity, potentially affecting emitter performance. These findings provide insight into optimizing CFE designs, accounting for imperfections that influence emission stability and efficiency.

English abstract

The study presents numerical modeling of cold field emitters (CFEs), specifically silicon pyramids coated with tungsten, using COMSOL Multiphysics. It examines how emitter geometry and surface contaminants impact electric field distribution and emission properties, with emphasis on areas near the emitter tip and along the scintillator edge. Results reveal that even minor changes in tip geometry or contamination can significantly alter field intensity, potentially affecting emitter performance. These findings provide insight into optimizing CFE designs, accounting for imperfections that influence emission stability and efficiency.

Keywords

cold field emitters, silicon pyramids, COMSOL Multiphysics, cold field emitter geometry, tungsten layer

Key words in English

cold field emitters, silicon pyramids, COMSOL Multiphysics, cold field emitter geometry, tungsten layer

Authors

KOŠELOVÁ, Z.; KNÁPEK, A.; FOHLEROVÁ, Z.

RIV year

2025

Released

21.10.2024

ISBN

9788021462793

Book

10th IMAPS FLASH CONFERENCE 2024

Edition

10

Pages from

54

Pages to

55

Pages count

2

BibTex

@inproceedings{BUT191129,
  author="Zuzana {Košelová} and Alexandr {Knápek} and Zdenka {Fohlerová}",
  title="Analysing Geometrical Effects on Electric Field Distribution in Silicon-Based Pyramid for Cold Field Emission",
  booktitle="10th IMAPS FLASH CONFERENCE 2024",
  year="2024",
  series="10",
  number="1",
  pages="54--55",
  isbn="9788021462793"
}