Surface-treatment of alkaline earth sulfides based phosphor

Chong Feng Guo, Ben Li Chu, Jian Xu, Qiang Su*

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)


A series of alkaline earth sulfides based phosphors Ca 0.8Sr 0.2S:Eu 2+, Tm 3+ were covered with a layer of protective coating with alkaline earth fluorides by heating the mixture of phosphor and NH 4HF 2 at elevated temperatures. The coatings were characterized by means of XRD and SEM. The optical properties of the coated phosphors and the influences of the coating on their properties have been discussed extensively. The stabilities of the coated and uncoated phosphors have been compared.

Original languageEnglish
Pages (from-to)253-257
Number of pages5
JournalChemical Research in Chinese Universities
Issue number3
Publication statusPublished - May 2004


  • Alkaline earth sulfides
  • Coating
  • Phosphor

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