Structural and electrical properties of nitrogen-ion implanted ZnO nanorods

  • C. H. Kwak
  • , Y. B. Lee
  • , S. Y. Seo
  • , S. H. Kim
  • , C. I. Park
  • , B. H. Kim
  • , D. W. Jeong
  • , J. J. Kim
  • , Zhenlan Jin
  • , S. W. Han*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

This study examined the micro-structural and electrical properties of nitrogen-ion implanted ZnO nanorods. Nitrogen ions (N+s) with energy of 50 keV and beam flux of 1016 particles/cm2 were implanted on vertically-aligned ZnO nanorods. Energy dispersive X-ray spectroscopy measurements showed that N+s were spread uniformly over the nanorods. Extended X-ray absorption fine structure (EXAFS) measurements suggested that the implanted N+s had partially substituted for the oxygen sites. The I-V characteristic curves showed that the N +-implanted nanorods were n-type. Moreover, annealing at 800 °C enhanced the charge carrier density in the nanorods by 10-fold, compared to the N+-implanted and unannealed ZnO nanorods.

Original languageEnglish
Pages (from-to)S328-S332
JournalCurrent Applied Physics
Volume11
Issue number3 SUPPL.
DOIs
StatePublished - 2011.05

Keywords

  • EXAFS
  • I-V
  • Ion implantation
  • Nanorod
  • Structure
  • ZnO

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Physics & Astronomy

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