Characteristics of a charged-droplet beam generated by vacuum electrospray of an ionic liquid

Yukio Fujiwara, Naoaki Saito, Hidehiko Nonaka, Taisuke Nakanaga, Shingo Ichimura

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

To develop a cluster ion beam source for secondary ion mass spectrometry (SIMS), beam characteristics of charged droplets electrosprayed in a vacuum were investigated using a room-temperature molten salt (i.e., an ionic liquid). A target current exceeding 200 nA was produced at a capillary voltage of 1.5 kV even with a low flow rate of 0.05 μL/min. Efficiency of beam generation varied with increasing capillary voltage and flow rate. Additionally, m/z values of emitted charged particles were investigated by a time-of-flight technique. In addition to masses and charge numbers, radii of the charged droplets were examined.

Original languageEnglish
Pages (from-to)335-339
Number of pages5
JournalChemical Physics Letters
Volume501
Issue number4-6
DOIs
Publication statusPublished - 2011 Jan 7
Externally publishedYes

Fingerprint

Ionic Liquids
flow velocity
Flow rate
Vacuum
vacuum
molten salts
Electric potential
electric potential
Charged particles
liquids
Secondary ion mass spectrometry
Ion beams
secondary ion mass spectrometry
Molten materials
charged particles
Salts
ion beams
radii
room temperature
Temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Characteristics of a charged-droplet beam generated by vacuum electrospray of an ionic liquid. / Fujiwara, Yukio; Saito, Naoaki; Nonaka, Hidehiko; Nakanaga, Taisuke; Ichimura, Shingo.

In: Chemical Physics Letters, Vol. 501, No. 4-6, 07.01.2011, p. 335-339.

Research output: Contribution to journalArticle

Fujiwara, Yukio ; Saito, Naoaki ; Nonaka, Hidehiko ; Nakanaga, Taisuke ; Ichimura, Shingo. / Characteristics of a charged-droplet beam generated by vacuum electrospray of an ionic liquid. In: Chemical Physics Letters. 2011 ; Vol. 501, No. 4-6. pp. 335-339.
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