Photoluminescence Properties of Er/Pr-Doped K0.5Na0.5NbO3Ferroelectric Ceramics

Xiao Wu, Chi Man Lau, Kin Wing Kwok

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)


Er/Pr-doped K0.5Na0.5NbO3ceramics have been fabricated and the effects of Pr3+on their photoluminescence properties have been investigated systematically. The visible upconversion emissions, near-infrared and mid-infrared downconversion emissions of Er3+ions under the excitation of 980 nm have been studied in detail. The effects of Pr3+on PL properties and energy-transfer processes have also been elucidated. By selecting an appropriate excitation source, simultaneous visible downconversion emissions of Er3+and Pr3+ions can be realized, and the emission colors of the ceramics can be tuned via the concentration of Pr3+ions in a wide range from yellowish green to yellow. Our results also reveal that the photoluminescence emissions of the ceramics can be enhanced by the alignment of polarization of the ferroelectric host.
Original languageEnglish
Pages (from-to)2139-2145
Number of pages7
JournalJournal of the American Ceramic Society
Issue number7
Publication statusPublished - 1 Jul 2015

ASJC Scopus subject areas

  • Ceramics and Composites
  • Geology
  • Geochemistry and Petrology
  • Materials Chemistry


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