The role of carbon black in the preparation of GdPO4:Tb phosphor powders by spray pyrolysis

Dae Soo Jung, Hye Young Koo, Sang Ho Lee, Yun Chan Kang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Nano-sized carbon black was applied in the spray pyrolysis as the nucleation seeds. Green-emitting Gd0.81Tb0.19PO 4 phosphor powders were prepared by spray pyrolysis from the colloidal spray solution with nano-sized carbon black. The Gd 0.81Tb0.19PO4 phosphor powders prepared from the colloidal spray solution had regular morphology and filled structure. The mean size and geometric standard deviation of the phosphor powders prepared from the colloidal spray solution were 0.95μm and 1.5. The Gd 0.81Tb0.19PO4 phosphor powders prepared from the colloidal spray solutions had similar photoluminescence intensities to that of the phosphor powders prepared from the aqueous spray solution under vacuum ultraviolet. Carbon black did not act as impurity of the Gd 0.81Tb0.19PO4 phosphor powders.

Original languageEnglish
Article number116503
JournalJapanese Journal of Applied Physics
Volume48
Issue number11
DOIs
Publication statusPublished - 2009 Dec 1
Externally publishedYes

Fingerprint

Spray pyrolysis
Carbon black
Phosphors
phosphors
pyrolysis
sprayers
Powders
preparation
carbon
Seed
Photoluminescence
Nucleation
seeds
standard deviation
Vacuum
Impurities
nucleation
photoluminescence
impurities
vacuum

ASJC Scopus subject areas

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

Cite this

The role of carbon black in the preparation of GdPO4:Tb phosphor powders by spray pyrolysis. / Jung, Dae Soo; Koo, Hye Young; Lee, Sang Ho; Kang, Yun Chan.

In: Japanese Journal of Applied Physics, Vol. 48, No. 11, 116503, 01.12.2009.

Research output: Contribution to journalArticle

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