Publication detail

Field Ion Microscopy of Tungsten Nano-Tips Coated with Thin Layer of the EpoxyResin

SOBOLA, D. AL SOUD, A. KNÁPEK, A. MOUSA, M. SCHUBERT, R. KOČKOVÁ, P. ŠKARVADA, P.

Original Title

Field Ion Microscopy of Tungsten Nano-Tips Coated with Thin Layer of the EpoxyResin

Type

miscellaneous

Language

English

Original Abstract

This paper reports results of analysis of field ion emission mechanism from tungsten‐epoxy composite emitters that are compared to tungsten nano‐field emitters. In this context, the mechanism of emission from this type of emitters is described based on a theory of induced conductive channels. The tungsten emitters were prepared using the electrochemical polishing technique and coated with a layer of the epoxy resin. Field ion microscope (FIM) analyses are reported including the study of the emission‐ion density distributions from both the uncoated and coated emitters. Two forms of emission patterns have been observed in the ion emission microscopy technique describing the differences in the emission mechanism of both types of emitters. The observed results show: (a) the expected crystalline surface atomic distribution images of the field ion microscopy in the case of uncoated tungsten tips, and (b) randomly distributed emission spots that describe the locations of the induced conductive channels inside the resin coating layer.

Keywords

field ion emission; tungsten atomic distribution; epoxy molecular distribution; composite field emitter; composite electron sources

Authors

SOBOLA, D.; AL SOUD, A.; KNÁPEK, A.; MOUSA, M.; SCHUBERT, R.; KOČKOVÁ, P.; ŠKARVADA, P.

Released

30. 7. 2024

Publisher

Preprints.org

Location

Preprints.org (www.preprints.org)

Pages from

1

Pages to

11

Pages count

11

URL

10.20944/preprints202407.2357.v1

Full text in the Digital Library

http://hdl.handle.net/11012/249382

BibTex

@misc{BUT189279,
  author="Dinara {Sobola} and Ammar {AL Soud} and Alexandr {Knápek} and Marwan {Mousa} and Richard {Schubert} and Pavla {Kočková} and Pavel {Škarvada}",
  title="Field Ion Microscopy of Tungsten Nano-Tips Coated with Thin Layer of the EpoxyResin",
  year="2024",
  pages="1--11",
  publisher="Preprints.org",
  address="Preprints.org (www.preprints.org)",
  doi="10.20944/preprints202407.2357.v1",
  url="10.20944/preprints202407.2357.v1",
  note="miscellaneous"
}