Bifunctional Gd2O3: Er3+ particles with enhanced visible upconversion luminescence

Timur Sh Atabaev, Zhonglie Piao, Yoon Hwae Hwang, Hyung Kook Kim, Nguyen Hoa Hong

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

This study examined the enhanced upconversion luminescence emission of bimodal Gd2O3:Er3+ particles by codoping with a trace amount of Li+ ions. Gd2O3:Er 3+/Li3+ composite particles with enhanced upconversion luminescence emission were synthesized by using a simple urea homogeneous precipitation method. The effect of the particle size and Er3+/ Li+ concentration ratio on the structural, morphological and optical properties of Gd2O3:Er3+/Li+ particles were studied systematically by X-ray powder diffraction, field emission scanning electron microscopy and room temperature photoluminescence. Strong upconversion eye-visible green light emission was observed from the Gd2O3:Er3+/Li+ particles under continuous near-infrared pump excitation from a commercially available diode laser. Monodisperse bimodal Gd2O3:Er3+/Li + particles show a good potential for biomedical and solid state lighting applications.

Original languageEnglish
Pages (from-to)113-117
Number of pages5
JournalJournal of Alloys and Compounds
Volume572
DOIs
Publication statusPublished - Sep 25 2013
Externally publishedYes

Keywords

  • GdO:Er
  • Phosphor particles
  • Upconversion luminescence

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

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