Low thermal quenching and high-efficiency Ce3+, Tb 3+-co-doped Ca3Sc2Si3O12 green phosphor for white light-emitting diodes

Yibo Chen*, Kok Wai CHEAH, Menglian Gong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

Low thermal quenching and high-efficiency Ca3Sc 2Si3O12:Ce3+ (CSSO:Ce3+) phosphors with co-doping Tb3+ ion were prepared by a solid state method and the properties of these phosphors were investigated. The results showed that co-doping of Tb3+ not only enhances the photoluminescence remarkably and decreases the thermal quenching of the phosphor, but also heightens the performances of the LEDs fabricated with the phosphor. A high-efficiency and low color temperature white LED was fabricated with the prepared CSSO:1%Ce3+, 0.5%Tb3+ and a red phosphor, indicating that CSSO:1%Ce3+,0.5%Tb3+ phosphor is a suitable green phosphor for the fabrication of high-efficiency white LEDs.

Original languageEnglish
Pages (from-to)1589-1593
Number of pages5
JournalJournal of Luminescence
Volume131
Issue number8
DOIs
Publication statusPublished - Aug 2011

Scopus Subject Areas

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

User-Defined Keywords

  • CaScSiO :Ce
  • Co-doping
  • LED
  • Phosphor

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