Crystal structure and luminescence of Sr0.99Eu0.01AlSiN3

Hiromu Watanabe, Hisanori Yamane, Naoto Kijima

Research output: Contribution to journalArticlepeer-review

92 Citations (Scopus)

Abstract

Strontium europium aluminum silicon nitride, Sr0.99Eu0.01AlSiN3, was synthesized by heating a mixture of binary nitrides at 2173 K and a N2 gas pressure of 190 MPa. Single crystals of Sr0.99Eu0.01AlSiN3 approximately 30 μm were obtained. The structure was confirmed to be an isotypic structure of CaAlSiN3 in the orthorhombic space group Cmc21, analyzed by single-crystal X-ray diffraction. The lattice parameters are a=9.843(3), b=5.7603(16), c=5.177(2) Å, cell volume=293.53(17) Å3. It shows an orange-red photoluminescence by 5d→4f transition of Eu2+ at around 610 nm under excitation ranging from ultraviolet to 525 nm. The photoluminescence intensity, temperature characteristics, and oxidative stability were comparable or superior to those of CaAlSiN3:Eu2+ phosphor.

Original languageEnglish
Pages (from-to)1848-1852
Number of pages5
JournalJournal of Solid State Chemistry
Volume181
Issue number8
DOIs
Publication statusPublished - 2008 Aug

Keywords

  • Bond valence
  • Crystal structure
  • Excitation and emission spectra
  • High pressure N gas synthesis
  • Luminescence
  • Nitride phosphor
  • Single-crystal X-ray diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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