Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application

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

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this study, alkali earth thio-selenide phosphor, SrS xSe 1-x:Eu 2+ , was prepared using the conventional solid state reaction method. The synthesized phosphor displayed a broad excitation band that was suitable for blue or near UV LED applications and emitted light at various wavelengths (563-605 nm) with different chemical compositions. Like the case of other alkali phosphors, Zn 2+ substitution for Sr 2+ greatly enhanced the emission of this thio-selenide phosphor. The LED fabricated with the synthesized phosphor produced white light using a blue LED with a CIE-1931 coordinate, T c and R a of (0.3199, 0.3107), 6577 K and 51.6, respectively.

Original languageEnglish
Pages (from-to)2690-2692
Number of pages3
JournalMaterials Letters
Volume65
Issue number17-18
DOIs
Publication statusPublished - 2011 Sep 1

Fingerprint

Strontium
selenides
strontium
Phosphors
phosphors
Light emitting diodes
light emitting diodes
Color
color
Alkalies
alkalies
Solid state reactions
chemical composition
Substitution reactions
Earth (planet)
substitutes
solid state
Wavelength
Chemical analysis
wavelengths

Keywords

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

ASJC Scopus subject areas

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

Cite this

Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application. / Yu, Hong Jeong; Chung, Wonkeun; Jung, Hyunchul; Park, Sun Hee; Kim, Sung Hyun.

In: Materials Letters, Vol. 65, No. 17-18, 01.09.2011, p. 2690-2692.

Research output: Contribution to journalArticle

Yu, Hong Jeong ; Chung, Wonkeun ; Jung, Hyunchul ; Park, Sun Hee ; Kim, Sung Hyun. / Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application. In: Materials Letters. 2011 ; Vol. 65, No. 17-18. pp. 2690-2692.
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