Luminous properties of SrGa2S3Se phosphors doped with Eu2+ for LEDs application

Hong Jeong Yu, Wonkeun Chung, Sun Hee Park, Jihyun Kim, Sung Hyun Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Thio-selenide phosphor, SrGa2SeS3:Eu2+, was prepared usingasolid-state chemical reaction method without the addition of toxic gases or other excess materials. The synthesized phosphor displayed a broad excitation band, whichissuitable for blue or NUV LED applications and emits green light (528 nm). The samples were also excited with various wavelength emitting diodes (410 nm, 425 nm, and 455 nm) to assess their potential use as phosphors for white LED applications. The LED fabricated with the synthesized phosphor produced bluish green light using NUV LED with a CIE-1931 coordinate, Tc and Ra of (0.2309, 0.3436), 11732.3 K and 18.2, respectively.

Original languageEnglish
Pages (from-to)474-476
Number of pages3
JournalMaterials Letters
Volume65
Issue number3
DOIs
Publication statusPublished - 2011 Feb 15

Keywords

  • Europium
  • Light emitting diodes
  • Luminescence
  • Phosphors
  • Thio-selenide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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