Near-ultraviolet excitable orange-yellow Sr3(Al2 O5)Cl2: Eu2+ phosphor for potential application in light-emitting diodes

  • Yu Sheng Tang
  • , Shu Fen Hu*
  • , Wei Chih Ke
  • , Chun Che Lin
  • , Nitin C. Bagkar
  • , Ru Shi Liu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

115 Citations (Scopus)

Abstract

Sr3 (Al2 O5) Cl2 phosphor doped with Eu2+ was prepared by a soli-state reaction. This phosphor emits a broad orange-yellow luminescence with a peak wavelength of 620 nm and a full width at half maximum of about 175 nm under near-ultraviolet (NUV) excitation at ∼400 nm. Yellow light-emitting diodes (LEDs) for general lighting were fabricated by combining Sr3 (Al2 O5) Cl2: Eu2+ phosphor with an NUV chip. The phosphor-converted LEDs had a color temperature of about 2300 K and their color rendering index was 74.

Original languageEnglish
Article number131114
JournalApplied Physics Letters
Volume93
Issue number13
DOIs
Publication statusPublished - 2008

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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