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Structural and optical properties of hydrogen-ion-implanted ZnO nanorods

  • Y. B. Lee*
  • , C. H. Kwak
  • , S. Y. Seo
  • , S. H. Kim
  • , C. I. Park
  • , B. H. Kim
  • , S. H. Park
  • , Yong Dae Choi
  • , S. W. Han
  • *Corresponding author for this work
  • Pohang University of Science and Technology
  • Jeonbuk National University
  • Research Institute of Industrial Science & Technology, Pohang
  • Mokwon University

Research output: Contribution to journalJournal articlepeer-review

Abstract

We investigated the micro-structural and the optical properties of H +-ion-implanted ZnO nanorods by using X-ray absorption fine structure (XAFS) measurements at the Zn K edge and photoluminescence (PL) measurements. Vertically-aligned ZnO nanorods were synthesized using metal-organic chemical-vapor deposition and were vertically implanted with hydrogen ions (H+) at an energy of 90 keV and a total flux of 1016 particles/cm2. Scanning electron microscopy measurements showed no detectable defects existing in the H+-ion-implanted ZnO nanorods. However, transmission electron microscopy measurements revealed that an amorphous phase existed, particularly near the top parts of the nanorods. X-ray diffraction and XAFS measurements provided further evidence that the nanorods had structural defects due to the H+-ion implantation. PL measurements showed that the transition peak intensity of the H +-ion-implanted ZnO nanorods was decreased dramatically due to the ion implantation.

Original languageEnglish
Pages (from-to)2050-2054
Number of pages5
JournalJournal of the Korean Physical Society
Volume56
Issue number61
DOIs
StatePublished - 2010

Keywords

  • Hydrogen implantation
  • Nanorod
  • Photoluminescence
  • Structure
  • XAFS
  • ZnO

Quacquarelli Symonds(QS) Subject Topics

  • Physics & Astronomy

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