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Time-resolved investigation of bright visible wavelength luminescence from sulfur-doped ZnO nanowires and micropowders

  • John V. Foreman
  • , Jianye Li
  • , Hongying Peng
  • , Soojeong Choi
  • , Henry O. Everitt*
  • , Jie Liu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

105 Scopus citations

Abstract

Sulfur-doped zinc oxide (ZnO) nanowires grown on gold-coated silicon substrates inside a horizontal tube furnace exhibit remarkably strong visible wavelength emission with a quantum efficiency of 30%, an integrated intensity 1600 times stronger than band edge ultraviolet emission, and a spectral distribution that closely matches the dark-adapted human eye response. By comparatively studying sulfur-doped and undoped ZnO micropowders, we clarify how sulfur doping and nanostructuring affect the visible luminescence and the underlying energy transfer mechanisms.

Original languageEnglish
Pages (from-to)1126-1130
Number of pages5
JournalNano Letters
Volume6
Issue number6
DOIs
StatePublished - Jun 2006

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

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