Synthesis and optical properties of Dy 3+-doped Y 2O 3 nanoparticles

Timur Sh Atabaev, Hong Ha Thi Vu, Hyung Kook Kim, Yoon Hwae Hwang

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

In the present study, nearly-uniform spherical-shaped dysprosium-doped cubic yttrium-oxide nanoparticles were prepared by using the urea homogeneous precipitation method. X-ray diffraction patterns of synthesized particles confirmed the formation of a pure cubic phase of Y 2O 3. The morphology and the elemental analysis measurements were carried out using a transmission electron microscope and a field-emission scanning electron microscope. The particles were observed to have average sizes of around 110 nm. In order to select the optimum concentration of the Dy 3+ dopant in the samples, we measured the strongest yellow emission peak intensity due to the strong 4F 9/2- 6H 13/2 transition (573 nm) as a function of the Dy-ion dopant concentration under a constant 349 nm excitation. The PL results showed that the strongest yellow emission at 573 nm occurred when the dopant concentration was about 1% in mol equivalent. Y 2O 3:Dy 3+ phosphor can be used for applications in security printing, biolabel technology, lamps for illumination purposes, etc.

Original languageEnglish
Pages (from-to)244-248
Number of pages5
JournalJournal of the Korean Physical Society
Volume60
Issue number2
DOIs
Publication statusPublished - Jan 2012
Externally publishedYes

Keywords

  • Luminescence
  • Nanoparticles
  • Phosphor
  • Yttrium oxide

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Synthesis and optical properties of Dy <sup>3+</sup>-doped Y <sub>2</sub>O <sub>3</sub> nanoparticles'. Together they form a unique fingerprint.

Cite this