A potential green-emitting phosphor Ca8Mg(SiO4) 4Cl2

Eu2+ for white light emitting diodes prepared by sol-gel method

Chongfeng Guo*, Ming Li, Yan Xu, Ting Li, Zhaoyu Ren, Jintao Bai

*Corresponding author for this work

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A potential green emitting phosphor Ca8Mg(SiO4) 4Cl2:Eu2+ was prepared by modified sol-gel method. The factors those affect the photoluminescence intensity including heating temperature, the usage of the chlorine source CaCl2 and the concentration of dopant Eu2+ were also investigated in detail. As comparison, the phosphor prepared by solid-state reaction was also prepared. The phosphors show intense absorption in the range of 375-450 nm, which makes it a potential candidate of green emitting phosphor used for near-UV or blue light excited white LEDs.

Original languageEnglish
Pages (from-to)8836-8839
Number of pages4
JournalApplied Surface Science
Volume257
Issue number21
DOIs
Publication statusPublished - 15 Aug 2011

Keywords

  • Green emission
  • LEDs
  • Phosphor

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