Effect of propylene glycol-water ratio on morphology of Y2O 2S particles prepared by complex homogeneous precipitation method

Valery Petrykin, Masato Kakihana

    研究成果: Article査読

    抄録

    The effect of propylene glycol-water ratio on the final particles morphology of Eu doped Y2O2S red phosphor prepared by the complex homogeneous precipitation at 95°C and 160°C was examined. The synthesis method was based on hydrolysis of urea and precipitation of the hydroxide in the presence of a glycol under solvothremal conditions; the sulfurization of the powders was carried out at 1000°C in the N 2-H2S gas. It was found that by changing the glycol concentration one may efficiently control the size of the particles in the range from 60 to 400 nm. The most homogeneous and non-agglomerated powders formed during precipitation at 160°C in the range of glycol-water mass ratios from 1:1 to 3:1. At the same time, the crystallinity determined from the XRD peaks broadening changes in a narrower range of 30-70 nm.

    本文言語English
    ページ(範囲)454-458
    ページ数5
    ジャーナルJournal of the Ceramic Society of Japan
    116
    1351
    DOI
    出版ステータスPublished - 2008 3

    ASJC Scopus subject areas

    • セラミックおよび複合材料
    • 化学 (全般)
    • 凝縮系物理学
    • 材料化学

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