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

98 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

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Phosphors
phosphors
Light emitting diodes
light emitting diodes
Color
color
Luminescence
luminescence
Chemical stability
Scintillation
Solid state reactions
scintillation
Quenching
phosphates
Phosphates
quenching
diagrams
Doping (additives)
solid state
Temperature

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

Cite this

Full-color and thermally stable KSrPO4:Ln (Ln = Eu, Tb, Sm) phosphors for white-light-emitting diodes. / Lin, C. C.; Liu, R. S.; Tang, Y. S.; Hu, S. F.

In: Journal of the Electrochemical Society, Vol. 155, No. 9, 15.08.2008.

Research output: Contribution to journalArticle

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