Synthesis and luminescence properties of Ho3 doped Y 2O3 submicron particles

Timur Sh Atabaev, Hong Ha Thi Vu, Yang Do Kim, Jae Ho Lee, Hyung Kook Kim, Yoon Hwae Hwang

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

This paper presents comprehensive results of the eco-friendly, large scale fabrication of nearly spherical Ho3-doped Y2O3 submicron particles, synthesized using the urea homogeneous precipitation method. The dependence of the photoluminescence emission on the doping concentration was examined to determine the optimum Ho3 concentration in the samples. X-ray diffraction data of the Y2O 3:Ho3 particles revealed a cubic Y2O 3 structure. Field emission scanning electron microscopy confirmed the formation of nearly spherical shape particles with a mean diameter of 200±50 nm. The luminescence emission intensity significantly increased with increasing calcination temperature due to the improved crystallinity of the synthesized particles. Strong visible green-yellowish emission due to 5F4; 5S2 5I8 Stokes transitions was observed under constant 450 nm excitation. Simple large scale fabrication along with the strong visible green-yellowish emission might give these particles wide area of applications.

Original languageEnglish
Pages (from-to)176-181
Number of pages6
JournalJournal of Physics and Chemistry of Solids
Volume73
Issue number2
DOIs
Publication statusPublished - Feb 2012
Externally publishedYes

Keywords

  • A. Optical materials
  • A. Oxides
  • D. Luminescence

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)

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