High brightness LaPO4:Ce,Tb phosphor particles with spherical shape

Yun Chan Kang, Eun Joung Kim, Dong Youl Lee, Hee Dong Park

Research output: Contribution to journalArticle

97 Citations (Scopus)

Abstract

Green-emitting LaPO4:Ce,Tb phosphor particles were synthesized by a large-scale spray pyrolysis. The prepared phosphor particles had a completely spherical shape, fine size, and high brightness under ultraviolet. The phosphor particles had the maximum photoluminescence intensity after posttreatment at 1300°C even without flux material. The phosphor particles had a spherical shape and non-aggregation characteristics. The types of phosporous source affected the morphological characteristics and photoluminescence of the prepared particles. Particles prepared from a solution with ammonium hydrogen phosphate had a higher brightness than those prepared from solutions with ammonium dihydrogen phosphate, ammonium phosphate, or phosphoric acid. The maximum brightness of particles prepared by spray pyrolysis was 109% that of the commercial product with non-spherical shape and large size.

Original languageEnglish
Pages (from-to)266-270
Number of pages5
JournalJournal of Alloys and Compounds
Volume347
Issue number1-2
DOIs
Publication statusPublished - 2002 Dec 16
Externally publishedYes

Fingerprint

Phosphors
Luminance
Phosphates
Spray pyrolysis
Photoluminescence
Phosphoric acid
Ammonium Compounds
Fluxes
Hydrogen
ammonium phosphate

Keywords

  • Chemical synthesis
  • Optical materials
  • Optical spectroscopy
  • Rare earth compounds

ASJC Scopus subject areas

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

Cite this

High brightness LaPO4:Ce,Tb phosphor particles with spherical shape. / Kang, Yun Chan; Kim, Eun Joung; Lee, Dong Youl; Park, Hee Dong.

In: Journal of Alloys and Compounds, Vol. 347, No. 1-2, 16.12.2002, p. 266-270.

Research output: Contribution to journalArticle

Kang, Yun Chan ; Kim, Eun Joung ; Lee, Dong Youl ; Park, Hee Dong. / High brightness LaPO4:Ce,Tb phosphor particles with spherical shape. In: Journal of Alloys and Compounds. 2002 ; Vol. 347, No. 1-2. pp. 266-270.
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