Monodispersed spherical YAG:Ce3+phosphor particles by one-pot synthesis

Yeon Kim, Kwang Bo Shim, Mihye Wu, Ha Kyun Jung

Research output: Contribution to journalArticle

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Abstract

Monodispersed spherical Ce3+-doped yttrium aluminum garnet phosphors were prepared by novel one-pot synthetic method designed. The morphology and size of phosphor particles were controlled by changing the solvent composition and the concentration of metal ion components. Single-phased phosphors with spherical shape and good dispersity could be achieved by firing the precursors at relatively low temperature. From the photoluminescence spectra, it was confirmed that the synthesized YAG:Ce3+phosphor emits typical yellow-green light peaked at around 540 nm under an excitation of 468 nm-wavelength. For white emission, on the other hand, the pc-WLED using the synthesized YAG:Ce3+phosphor and blue LED chip was fabricated and its electroluminescent property was evaluated.

Original languageEnglish
Pages (from-to)40-47
Number of pages8
JournalJournal of Alloys and Compounds
Volume693
DOIs
StatePublished - 2017 Jan 1

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Keywords

  • Monodispersed
  • One-pot synthesis
  • Spherical
  • YAG:Ce
  • wLEDs

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