Full-color and thermally stable KSrPO4:Ln (Ln = Eu, Tb, Sm) phosphors for white-light-emitting diodes

C. C. Lin, R. S. Liu, Y. S. Tang, S. F. Hu

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

The novel phosphors of KSrPO4 doped with Eu2+, Tb3+, and Sm3+ were synthesized by solid-state reaction, and their luminescence properties were investigated. The phosphors show pure three-basal-color (red-green-blue) luminescence in the CIE1931 chromaticity diagram, and it was observed that the concentration quenching was dependent on the different dopant contents. This series of phosphate-based phosphors shows higher thermally stable luminescence, which was found to be better than commercially available Y3Al5O12:Ce3+ phosphor at temperatures higher than 200°C. Considering the situation of high color-rendering index and chemical stability, we have demonstrated that KSrPO4:Ln (Ln = Eu, Tb, Sm) are potentially useful new scintillation materials for white-light-emitting diodes.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume155
Issue number9
DOIs
Publication statusPublished - Aug 15 2008
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Materials Chemistry
  • Electrochemistry

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