Electrical screening of ternary NiO-Mn 2 O 3 -Co 3 O 4 composition spreads

D. A. Kukuruznyak, P. Ahmet, T. Chikyow, A. Yamamoto, F. S. Ohuchi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The compositional optimization of infrared-transparent conducting oxides was performed using high throughput screening of combinatorial libraries. Complete ternary composition spreads of NiO-Mn 2 O 3 -Co 3 O 4 alloys were deposited onto conducting Nb-doped SrTiO 3 substrates using the pulsed laser deposition technique. Resistance-temperature relations of each composition in the spread were determined using a custom-designed scanning probe. The binary NiCo 2 O 4 oxide showed the lowest electrical resistivity of about 0.1 Ω cm but unacceptably large resistance-temperature dependence (3.5%/°C). Electrically conducting ternary alloys along the line Mn 0.45 Ni 0.63 Co 1.92 O 4 -Mn 0.60 Ni 0.72 Co 1.68 O 4 -Mn 0.69 Ni 0.81 Co 1.50 O 4 exhibited much lower temperature sensitivity (of about 1.5%/°C) as well as electrical resistance comparable to that of NiCo 2 O 4 . From this screening we propose new compounds for the thin-film ITCO sensors.

Original languageEnglish
Pages (from-to)3828-3832
Number of pages5
JournalApplied Surface Science
Volume252
Issue number10
DOIs
Publication statusPublished - 2006 Mar 15
Externally publishedYes

Keywords

  • Composition spreads
  • High-throughput combinatorial methods
  • Infrared-transparent oxide (ITCO)
  • PLD
  • Scanning probe

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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