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Nitrogen-rich indium nitride

  • K. S.A. Butcher*
  • , M. Wintrebert-Fouquet
  • , P. P.T. Chen
  • , T. L. Tansley
  • , H. Dou
  • , S. K. Shrestha
  • , H. Timmers
  • , M. Kuball
  • , K. E. Prince
  • , J. E. Bradby
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    77 Citations (Scopus)

    Abstract

    Elastic recoil detection analysis was used to measure indium nitride films grown by radio-frequency sputtering. It was found that the films have nitrogen-rich stoichiometry. Secondary ion mass spectroscopy and ultraviolet Raman measurements were used to probe the state of the excess nitrogen. A shift in the (0002) x-ray diffraction peak correlated with the excess nitrogen but not with the oxygen in some samples. The results show that the high n-type carrier concentration for rf sputtered indium nitride was not due to nitrogen vacancies and that excess nitrogen was the source of the background n-type doping.

    Original languageEnglish
    Pages (from-to)6124-6128
    Number of pages5
    JournalJournal of Applied Physics
    Volume95
    Issue number11 I
    DOIs
    Publication statusPublished - 1 Jun 2004

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