Controlled synthesis and improved luminescent properties of (Gd1-x,Eux)3GaO6 phosphors fabricated via spray pyrolysis

Sungho Choi, Kyoungun Kim, Sahn Nahm, Ha Kyun Jung

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Eu3+ activated trigadolinium gallate, Gd3GaO6:Eu, was successfully synthesized using various aqueous solutions via ultrasonic spray pyrolysis. The corresponding phosphors illuminated an efficient red emission under Hg-discharge condition with enhanced color purity, which is related to prominent peaks centered at 615 and 629 nm induced by the electric dipole transition of 5D0 7F2 of Eu3+. By using a proper Ga source for aqueous solution, especially gallium sulfate, uniformly distributed Gd3GaO6:Eu3+ phosphor with controlled morphology and enhanced emission efficiency was obtained.

Original languageEnglish
Pages (from-to)1684-1687
Number of pages4
JournalOptical Materials
Volume31
Issue number11
DOIs
Publication statusPublished - 2009 Sep

Keywords

  • Phosphor
  • Photoluminescence
  • Spray pyrolysis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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