Synthesis of Sr3SiO5:Eu2+ yellow-orange phosphor by gelation method using propylene glycol-modified silane

Tetsufumi Komukai, Naomi Suzuki, Yuji Takatsuka, Masato Kakihana

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We investigated the synthesis of Sr3SiO5:Eu2+(SSE) yellow-orange phosphors by three different gelation methods using Propylene Glycol-Modified Silane ((1) Gelation with Sr, Eu nitrate solution, (2) Gelation with Sr, Eu citrate solution, (3) Gelation with SrCO3 and Eu2O3 slurry) and the effects of the synthetic methods on the main phase (Sr3SiO5) purity and quantum efficiency of SSE phosphors. SSE phosphor synthesized by the nitrate solution method exhibited relatively low main phase purity and quantum efficiency due to segregation of Sr and Eu that occurred during a drying process of the synthesis. SSE phosphor with higher quantum efficiency was obtained by the citrate solution method, but decomposition of a large amount of citric acid was a problem. Obtaining a pasty white gel by adding PGMS to the slurry of SrCO3 and Eu2O3 without adding citric acid was the best way to obtain SSE phosphor having the highest phase purity and quantum efficiency with constituent elements evenly distributed. The slurry method was also effective from the viewpoint of not requiring decomposition of a large amount of organic components.

    Original languageEnglish
    Pages (from-to)560-565
    Number of pages6
    JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
    Volume65
    Issue number9
    DOIs
    Publication statusPublished - 2018

    Keywords

    • Gelation method
    • Phosphor
    • Propylene Glycol-Modified Silane
    • SrSiO:Eu

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Industrial and Manufacturing Engineering
    • Metals and Alloys
    • Materials Chemistry

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