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 journalArticlepeer-review

    6 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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