Nano-sized Y 2 O 3 :Eu phosphor particles prepared by spray pyrolysis

Chang Hee Lee, Kyung Youl Jung, Joong Gill Choi, Yun Chan Kang

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Y 2 O 3 :Eu phosphor particles with nano-sized and non-aggregation characteristics were prepared by spray pyrolysis using spraying solution containing polymeric precursors and Li 2 CO 3 flux material. The post-treated phosphor particles with fine size and high brightness were ball milled to reduce the aggregation degree of the nano-sized Y 2 O 3 :Eu phosphor particles. The mean particle size, morphology, and brightness of Y 2 O 3 :Eu phosphor particles were strongly affected by contents of the additives and post-treatment temperature. The Y 2 O 3 :Eu phosphor particles prepared from the solution containing 0.3 M citric acid, 0.3 M ethylene glycol and 5 wt.% Li 2 CO 3 had fine size and good morphology after post-treatment. The Y 2 O 3 :Eu phosphor particles post-treated at 1000°C for 3 h had the mean size of 300nm. Nano-sized Y 2 O 3 :Eu phosphor particles prepared by spray pyrolysis had similar photoluminescence intensity to the micron-sized Y 2 O 3 :Eu commercial product prepared by solid state reaction method. The Y 2 O 3 :Eu phosphor particles had aggregation-free and regular morphology characteristics even after 30 min ball milling process.

Original languageEnglish
Pages (from-to)59-63
Number of pages5
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume116
Issue number1
DOIs
Publication statusPublished - 2005 Jan 15
Externally publishedYes

Fingerprint

Spray pyrolysis
Phosphors
phosphors
pyrolysis
sprayers
Carbon Monoxide
Luminance
Agglomeration
balls
brightness
Ethylene Glycol
Citric acid
Ball milling
Spraying
citric acid
Ethylene glycol
Solid state reactions
spraying
Citric Acid
Photoluminescence

Keywords

  • Display
  • Nano-particles
  • Phosphor
  • Spray pyrolysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Nano-sized Y 2 O 3 :Eu phosphor particles prepared by spray pyrolysis . / Lee, Chang Hee; Jung, Kyung Youl; Choi, Joong Gill; Kang, Yun Chan.

In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 116, No. 1, 15.01.2005, p. 59-63.

Research output: Contribution to journalArticle

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