XPS study of the effect of Ar-ion bombardment and aging on surface properties of superionic conducting glass (CuI)0.3(Cu2O)0.35(MoO3) 0.35

Shigeru Suzuki, Masatoshi Saito, Shinchul C. Kang, Kallarackel T. Jacob, Yoshio Waseda

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

XPS analysis has been used for characterizing the effects of argon-ion bombardment and aging at room temperature on the surface properties of the superionic conducting glass having the composition (CuI)0.3(Cu2O)0.35(MoO3) 0.35. Copper and molybdenum ions in this particular glass are found to be significantly reduced by argon-ion bombardment, Cu2+ to Cu0 and Mo6+ to Mo4+. The chemical change is attributed to preferential sputtering of iodine and oxygen from the surface of the glass. The concentration of copper on the surface increases and that of molybdenum decreases with aging at room temperature. From aging curves, the diffusion coefficient of copper is estimated to be of the order of 10-23 m2-s-1.

Original languageEnglish
Pages (from-to)1024-1028
Number of pages5
JournalMaterials Transactions, JIM
Volume39
Issue number10
DOIs
Publication statusPublished - 1998 Oct

Keywords

  • (CuI)-(CuO)-(MoO) system
  • Diffusion coefficient of copper
  • Ion bombardment
  • Superionic conducting glass
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Engineering(all)

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