Absolute emission current density of O- from 12CaO7Al 2O3 crystal

Q. X. Li, K. Hayashi, M. Nishioka, H. Kashiwagi, M. Hirano, Y. Torimoto, H. Hosono, M. Sadakata

Research output: Contribution to journalArticle

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Abstract

Strong and high purity O- negative ion emission has been observed from a synthesized crystal 12CaO7Al2O3 surface. A μA/cm2-level O- emission from this material has been achieved at the surface temperature of 800°C and the extraction field over 1000 V/cm, which is about three orders of magnitude higher than the current density emitted from the Y2O3-stabilized ZrO2 electrolyte surface. The strong emissivity of this material, as well as easy and economical fabrication, may provide a useful tool to generate the O- negative ion, which is expected to be one of the most important radicals for chemical syntheses and material modifications.

Original languageEnglish
Pages (from-to)4259-4261
Number of pages3
JournalApplied Physics Letters
Volume80
Issue number22
DOIs
Publication statusPublished - Jun 3 2002
Externally publishedYes

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negative ions
current density
ion emission
emissivity
crystal surfaces
surface temperature
crystals
purity
electrolytes
fabrication
synthesis

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Li, Q. X., Hayashi, K., Nishioka, M., Kashiwagi, H., Hirano, M., Torimoto, Y., ... Sadakata, M. (2002). Absolute emission current density of O- from 12CaO7Al 2O3 crystal. Applied Physics Letters, 80(22), 4259-4261. https://doi.org/10.1063/1.1476958

Absolute emission current density of O- from 12CaO7Al 2O3 crystal. / Li, Q. X.; Hayashi, K.; Nishioka, M.; Kashiwagi, H.; Hirano, M.; Torimoto, Y.; Hosono, H.; Sadakata, M.

In: Applied Physics Letters, Vol. 80, No. 22, 03.06.2002, p. 4259-4261.

Research output: Contribution to journalArticle

Li, QX, Hayashi, K, Nishioka, M, Kashiwagi, H, Hirano, M, Torimoto, Y, Hosono, H & Sadakata, M 2002, 'Absolute emission current density of O- from 12CaO7Al 2O3 crystal', Applied Physics Letters, vol. 80, no. 22, pp. 4259-4261. https://doi.org/10.1063/1.1476958
Li QX, Hayashi K, Nishioka M, Kashiwagi H, Hirano M, Torimoto Y et al. Absolute emission current density of O- from 12CaO7Al 2O3 crystal. Applied Physics Letters. 2002 Jun 3;80(22):4259-4261. https://doi.org/10.1063/1.1476958
Li, Q. X. ; Hayashi, K. ; Nishioka, M. ; Kashiwagi, H. ; Hirano, M. ; Torimoto, Y. ; Hosono, H. ; Sadakata, M. / Absolute emission current density of O- from 12CaO7Al 2O3 crystal. In: Applied Physics Letters. 2002 ; Vol. 80, No. 22. pp. 4259-4261.
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