Synthesis of high-brightness sub-micrometer y2O2S red phosphor powders by complex homogeneous precipitation method

Yoshiyuki Kawahara, Valery Petrykin, Takahashi Ichihara, Naoto Kijima, Masato Kakihana

    Research output: Contribution to journalArticlepeer-review

    45 Citations (Scopus)


    High-brightness Y2O2S red phosphor powders with sub-micrometer particle size were prepared by complex homogeneous precipitation method employing hydrolysis of urea in water solutions of various diols. Sulfurization was carried out by annealing of the obtained powders at 700-1200 °C in the presence of Na2CO3-S mixture. Despite the small particle size, the luminescence intensity for most of the samples was comparable with one of the best available commercial Y2O2S phosphors, while Y2O2S samples doped with Eu and a small amount of Tb were superior to the commercial reference.

    Original languageEnglish
    Pages (from-to)6303-6307
    Number of pages5
    JournalChemistry of Materials
    Issue number26
    Publication statusPublished - 2006 Dec 26

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Chemistry


    Dive into the research topics of 'Synthesis of high-brightness sub-micrometer y<sub>2</sub>O<sub>2</sub>S red phosphor powders by complex homogeneous precipitation method'. Together they form a unique fingerprint.

    Cite this