Controllable Eu valence for photoluminescence tuning in apatite-typed phosphors by the cation cosubstitution effect

Guogang Li, Chun Che Lin, Yi Wei, Zewei Quan, Ying Tian, Yun Zhao, Ting Shan Chan, Jun Lin

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

By cosubstituting [Ca2+-P5+] for [La3+-Si4+] in the Eu-doped Ca(2→8)La(8→2)(SiO4)6-x(PO4)xO2 (0 ≤ x ≤ 6) system, Eu3+ ions are controllably and gradually transformed to Eu2+. Thus, the emission colors consecutively changed from red to blue/green light. Furthermore, excellent warm-white lights with the low correlated color temperature (CCT) range of 3500-3800 K and a high color rendering index (Ra) (88.4-93.2) have been achieved by mixing the as-prepared phosphors at different cation cosubstitution ratios.

Original languageEnglish
Pages (from-to)7376-7379
Number of pages4
JournalChemical Communications
Volume52
Issue number46
DOIs
Publication statusPublished - Jan 1 2016
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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