Synthesis and characterization of Sr2Si5N 8:Eu2+ phosphor using strontium carboxylate

Takashi Horikawa, Masahiro Fujitani, Xianqing Piao, Hiromasa Hanzawa, Ken Ichi Machida

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Divalent europium ion doped metal nitride phosphor, of Sr 2Si5N8:Eu2+, was synthesized by using Sr carboxylates as a reducing agent and the preparation conditions were optimized. The obtained samples derived from Sr acetate doped with 4 at% Eu 2+ to Sr content showed a strong emission at about 630 nm under the excitation at 449 nm. The emission intensity was about 136% of that of a commercially available YAG:Ce3+ (P46-Y3) standard phosphor, and the residual oxygen and carbon contents were 0.88 and 0.04%, respectively. All these values were better than those for the same composition of Sr2Si 5N8:Eu2+ prepared by the conventional CRN method. The excellent quality and the suitable CIE chromaticity coordinates of (0.645, 0.355) suggest that this phosphor is one of possible candidates for the red color component of white LEDs.

Original languageEnglish
Pages (from-to)623-627
Number of pages5
JournalJournal of the Ceramic Society of Japan
Issue number1346
Publication statusPublished - 2007 Oct
Externally publishedYes


  • Divalent europium
  • Metal nitride phosphor
  • Molecular carbon reductant
  • Red emission
  • White LED

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


Dive into the research topics of 'Synthesis and characterization of Sr2Si5N 8:Eu2+ phosphor using strontium carboxylate'. Together they form a unique fingerprint.

Cite this