Enhancement of photoluminescence and color purity of CaTiO 3: Eu phosphor by Li doping

Yun Fang Wu, Yung Tang Nien, Yi Jhang Wang, In-Gann Chen

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95 Citations (Scopus)


High color purity red phosphors of Ca 1-3/2xEu xTiO 3 and Ca 1-2xEu xLi xTiO 3 (0 < x ≤ 0.3) are synthesized via a solid-state reaction method. The red emission photoluminescence intensity and color purity are enhanced by the incorporation of Li + into CaTiO 3:Eu 3+. The Li + doping increases the emission probability from 5D 0 state, increases photoluminescence intensity by 1.6 times, increases color purity to 92.1%, and shortens the decay time. With increasing Eu 3+ and Li + content, the color coordinates approach the ideal red chromaticity values, coming closer than commercial Y 2O 2S:Eu 3+ red phosphor.

Original languageEnglish
Pages (from-to)1360-1366
Number of pages7
JournalJournal of the American Ceramic Society
Issue number4
Publication statusPublished - 2012 Apr 1

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry


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