Reproducibility of O- negative ion emission from C12A7 crystal surface

Quanxin Li, Katsuro Hayashi, Masateru Nishioka, Hideo Kashiwagi, Masahiro Hirano, Yoshifumi Torimoto, Hideo Hosono, Masayoshi Sadakata

Research output: Contribution to journalLetter

25 Citations (Scopus)

Abstract

Reproducibility, stability and oxygen-pressure dependence of O- negative ion emission from a synthesized crystal 12CaO · 7Al2O3 (C12A7) surface have been investigated. We found the continuous O- implantation into the C12A7 crystal can be simply realized by supplying electron and oxygen on the Au-deposited C12A7 surface via electrocatalytic reactions. The O- emission from the consumed C12A7 surface was recovered after the implantation operation (O2:0.13 Pa; 770°C) for 30 minutes. In contrast, the implantation influence on electron emission is negligible. The O- emission intensity is nearly constant in the O2 pressure lower than 1 × 10-3 Pa. The O- implantation mechanism will be addressed.

Original languageEnglish
Pages (from-to)L530-L532
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume41
Issue number5
DOIs
Publication statusPublished - May 1 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Reproducibility of O<sup>-</sup> negative ion emission from C12A7 crystal surface'. Together they form a unique fingerprint.

  • Cite this

    Li, Q., Hayashi, K., Nishioka, M., Kashiwagi, H., Hirano, M., Torimoto, Y., Hosono, H., & Sadakata, M. (2002). Reproducibility of O- negative ion emission from C12A7 crystal surface. Japanese Journal of Applied Physics, Part 2: Letters, 41(5), L530-L532. https://doi.org/10.1143/jjap.41.l530