Improving the stability of alkaline earth sulfide-based phosphors

Chongfeng Guo, Benli Chu, Qiang Su*

*Corresponding author for this work

Research output: Contribution to journalArticle

47 Citations (Scopus)


Alkaline earth sulfide-based red-emitting phosphor Ca 0.8Sr 0.2S:Eu 2+, Tm 3+ were coated directly by ZnO and Al 2O 3 particles to prevent PL intensities degradation under the effects from moist air. The PL intensities degradation of phosphors modified with oxides particles was reduced to different extents, in comparison with that of uncoated phosphor. SEM (scanning electron microscopy), powder XRD (X-ray diffraction) and EDX (energy dispersive X-ray) methods were used to characterize the coating.

Original languageEnglish
Pages (from-to)198-203
Number of pages6
JournalApplied Surface Science
Issue number1-4
Publication statusPublished - 30 Mar 2004


  • Coating
  • Phosphor
  • Stability and surface
  • Sulfide

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