Effect of site occupancies on deep-red emission from Eu2+-activated Ca22-SiO4 phosphor

Hiroki Kuwahara, Yasushi Sato, Hideki Kato, Makoto Kobayashi, Takaki Masaki, Masato Kakihana

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Calcium silicate cosubstituted with Sr2+ and Eu2+ was studied in order to examine the relationship between emission characteristics and Eu2+ occupancy at two types of Ca sites (Ca(1n) and Ca(2n)). The results clearly indicate that red emission of the Ca22-SiO4:Eu2+ phosphor is caused by Eu2+ substitution at the Ca(2n) site. In addition, red shift in emission of Eu(2n) occurs when large amounts of Eu were substituted.

Original languageEnglish
Pages (from-to)321-323
Number of pages3
JournalChemistry Letters
Volume45
Issue number3
DOIs
Publication statusPublished - 2016 Jan 1

Keywords

  • Deep-red emission
  • Light-emitting diode (LED)
  • Site occupancy

ASJC Scopus subject areas

  • Chemistry(all)

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