Thin film deposition of semiconducting Ni-Co oxide spinel with adequate electrical and optical properties for energy application

Shu Yi Tsai, Kuan Zong Fung, Chao Nan Wei, Hui Yun Bor

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Nickel-cobalt oxide with spinel structure was successfully fabricated using a wet chemical route followed by calcinations at 300 °C. In nickel-cobalt spinel oxide, Ni2+ ions occupy the octahedral sites and Co 3+ ions are distributed over both octahedral and tetrahedral sites. Very interestingly, nickel-cobalt spinel oxide does not only show a p-type semi-conducting behavior material but also exhibits desired transparency in infrared wavelengths. Electrical and optical properties of the deposited films were investigated as a function of different processing conditions. The sputtering target is fabricated by homogeneously mixing oxide powders and followed by sintering at 1,500 °C. The nickel-cobalt oxide film showed a resistivity as low as 10-2 Ω-cm by radio frequency (RF) magnetron sputtering in a pure oxygen atmosphere. The sputter-deposited nickel-cobalt oxide films also showed more than 70% transmittance in the infrared range.

Original languageEnglish
Pages (from-to)2584-2587
Number of pages4
JournalJournal of Electronic Materials
Volume43
Issue number7
DOIs
Publication statusPublished - 2014 Jul

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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