Ultraviolet Laser Action in Ferromagnetic Zn1-xFexO Nanoneedles

H. Y. Yang, Siu Fung Yu, Shu Ping Lau, T. S. Herng, M. Tanemura

Research output: Journal article publicationJournal articleAcademic researchpeer-review

12 Citations (Scopus)

Abstract

Fe-doped ZnO nanoneedles (NDs) were fabricated by an Ar+ion sputtering technique operated at room temperature. The as-grown samples show both ferromagnetic and lasing properties. The saturated magnetization moment was measured from 0. 307 to 0. 659 emu cm-3at the field of 10 kOe with various Fe concentrations. Intense ultraviolet random lasing emission was observed from Zn1 - xFexO NDs at room temperature. The X-ray photoelectron spectroscopy result reveals that the doped Fe atoms occupy the Zn sites and lead to a decrease in oxygen deficiency.
Original languageEnglish
Pages (from-to)247-251
Number of pages5
JournalNanoscale Research Letters
Volume5
Issue number1
DOIs
Publication statusPublished - 1 Jan 2010

Keywords

  • Ferromagnetic
  • Ion beam
  • Nanoneedles
  • Random lasing
  • Zn FexO 1 - x

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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