Vacuum ultraviolet characteristics of fine GdPO4:Tb phosphor particles with spherical shape

Kyo Kwang Lee, Yun Chan Kang, Kyeong Youl Jung, Hee Dong Park

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


GdPO4:Tb phosphor particles with spherical shape and high photoluminescence were prepared by spray pyrolysis. The brightness of the prepared GdPO4:Tb under vacuum ultraviolet (VUV) illumination was comparable with that of commercial Zn2SiO4:Mn phosphor particles. The spherical morphology of prepared GdPO4:Tb particles was completely maintained even after post treatment up to 1100°C. When the post treatment temperature was over 1100°C, the particles did not maintain the spherical shape. However, given that the highest photoluminescence was obtained at 1050°C, the GdPO4:Tb phosphor particles with spherical shape prepared by spray pyrolysis are a promising candidate as a green phosphor for plasma display panels (PDPs). By changing the content of the activator (Tb) and phosphorous, the optimal composition giving the highest photoluminescence intensity was found. Under the optimal condition, the decay time of prepared spherical GdPO4:Tb phosphor particles was approximately 6.9 ms, which is appropriate for application to PDPs.

Original languageEnglish
Pages (from-to)5590-5593
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number9
Publication statusPublished - 2002 Sep
Externally publishedYes


  • Gadolinium phosphate
  • Phosphor
  • Photoluminescence
  • Plasma display panel
  • Spray pyrolysis

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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