Fabrication of ZnO Coated ZnS:Mn2+ nanoparticles

Shinji Ishizaki, Yusuke Kusakari, Masakazu Kobayashi

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

The fabrication of ZnO coated ZnS:Mn2+ nanoparticles were achieved using simple methods. ZnS:Mn2+ nanoparticles were prepared by a mechanical milling method. Coating of ZnO was then performed using a simple chemical method. Structural properties were evaluated by the X-ray powder diffraction (XRD) and the transmission electron microscope (TEM). Optical properties of the ZnO coated ZnS:Mn2+ nanoparticle were characterized by exciting the particle included solvent using an UV-LED (400 nm). Bright orange color fluorescence was observed, and the fluorescence intensity of ZnO coated ZnS:Mn2+ nanoparticles was enhanced as compared to uncoated ZnS:Mn2+ nanoparticles. The capping of the core surface has probably terminated surface defects of ZnS:Mn2+ nanoparticles, and resulted in the improved fluorescence intensity.

Original languageEnglish
Article numberB2.22
Pages (from-to)139-143
Number of pages5
JournalMaterials Research Society Symposium Proceedings
Volume829
Publication statusPublished - 2005 Jun 20
EventProgress in Compound Semiconductor Materials IV - Electronic and Optoelectronic Applications - Boston, MA, United States
Duration: 2004 Nov 292004 Dec 3

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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