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X-ray photoemission spectroscopy determination of the InN/yttria stabilized cubic-zirconia valence band offset

  • P. D. C. King
  • , T. D. Veal
  • , S. A. Hatfield
  • , P. H. Jefferson
  • , C. F. McConville
  • , C. E. Kendrick
  • , C. H. Swartz
  • , S. M. Durbin

Research output: Contribution to journalArticlepeer-review

Abstract

The valence band offset of wurtzite InN(0001)/yttria stabilized cubic-zirconia (YSZ)(111) heterojunctions is determined by x-ray photoemission spectroscopy to be 1.19 +/- 0.17 eV giving a conduction band offset of 3.06 +/- 0.20 eV. Consequently, a type-I heterojunction forms between InN and YSZ in the straddling arrangement. The low lattice mismatch and high band offsets suggest potential for use of YSZ as a gate dielectric in high-frequency InN-based electronic devices.

Original languageEnglish
Pages (from-to)112103
Number of pages3
JournalApplied Physics Letters
Volume91
Issue number11
DOIs
Publication statusPublished - 10 Sept 2007

Keywords

  • TEMPERATURE-DEPENDENCE
  • INDIUM NITRIDE
  • WURTZITE INN
  • GAP
  • DISLOCATIONS
  • MOBILITY
  • GROWTH

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