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 journalArticle

26 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

Fingerprint

electron microscopes
yttrium oxides
optical properties
nanoparticles
dysprosium
synthesis
ion concentration
ureas
printing
phosphors
luminaires
field emission
diffraction patterns
illumination
scanning
excitation
x rays

Keywords

  • Luminescence
  • Nanoparticles
  • Phosphor
  • Yttrium oxide

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Synthesis and optical properties of Dy 3+-doped Y 2O 3 nanoparticles. / Atabaev, Timur Sh; Vu, Hong Ha Thi; Kim, Hyung Kook; Hwang, Yoon Hwae.

In: Journal of the Korean Physical Society, Vol. 60, No. 2, 01.2012, p. 244-248.

Research output: Contribution to journalArticle

Atabaev, Timur Sh ; Vu, Hong Ha Thi ; Kim, Hyung Kook ; Hwang, Yoon Hwae. / Synthesis and optical properties of Dy 3+-doped Y 2O 3 nanoparticles. In: Journal of the Korean Physical Society. 2012 ; Vol. 60, No. 2. pp. 244-248.
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