A single-atom sharp iridium tip as an emitter of gas field ion sources

Hong Shi Kuo, Ing Shouh Hwang, Tsu Yi Fu, Ying Siang Hwang, Yi Hsien Lu, Chun Yueh Lin, Jin Long Hou, Tien T. Tsong

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We report a reliable method for preparing a pure Ir single-atom tip by thermal treatment in oxygen. The atomic structure of the tip apex and its ion emission characteristics are investigated with field ion microscopy. We have shown that the Ir single-atom tip can be a good field ion emitter, capable of emitting a variety of gas ion beams, such as He+, H2 +, N2+, and O2+, with high brightness and stability. In addition, this tip can easily be maintained and regenerated in vacuum, ensuring it has sufficient lifetime for practical applications.

Original languageEnglish
Article number335701
JournalNanotechnology
Volume20
Issue number33
DOIs
Publication statusPublished - 2009 Aug 19

Fingerprint

Oil and Gas Fields
Iridium
Ion sources
Gases
Ions
Atoms
Ion beams
Luminance
Microscopic examination
Vacuum
Heat treatment
Oxygen
Microscopy
Hot Temperature

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Kuo, H. S., Hwang, I. S., Fu, T. Y., Hwang, Y. S., Lu, Y. H., Lin, C. Y., ... Tsong, T. T. (2009). A single-atom sharp iridium tip as an emitter of gas field ion sources. Nanotechnology, 20(33), [335701]. https://doi.org/10.1088/0957-4484/20/33/335701

A single-atom sharp iridium tip as an emitter of gas field ion sources. / Kuo, Hong Shi; Hwang, Ing Shouh; Fu, Tsu Yi; Hwang, Ying Siang; Lu, Yi Hsien; Lin, Chun Yueh; Hou, Jin Long; Tsong, Tien T.

In: Nanotechnology, Vol. 20, No. 33, 335701, 19.08.2009.

Research output: Contribution to journalArticle

Kuo, HS, Hwang, IS, Fu, TY, Hwang, YS, Lu, YH, Lin, CY, Hou, JL & Tsong, TT 2009, 'A single-atom sharp iridium tip as an emitter of gas field ion sources', Nanotechnology, vol. 20, no. 33, 335701. https://doi.org/10.1088/0957-4484/20/33/335701
Kuo, Hong Shi ; Hwang, Ing Shouh ; Fu, Tsu Yi ; Hwang, Ying Siang ; Lu, Yi Hsien ; Lin, Chun Yueh ; Hou, Jin Long ; Tsong, Tien T. / A single-atom sharp iridium tip as an emitter of gas field ion sources. In: Nanotechnology. 2009 ; Vol. 20, No. 33.
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