Effect of surface treatment on stability of lanthanum oxide bromide phosphor

Jutang Sun, Xiuzhen Du, Takashi Kyotani, Akira Tomita

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    The usefulness of surface envelope substances (Al(OH)3, AlPO4, Al2(SiO3)3, Zn3(PO4)2, and ZnSiO3) and additives (Na2EDTA, MgSO4) on the stability of lanthanum bromide oxide phosphor against the action of water have been studied. The envelope substance forms a protective film on the surface of phosphor particles. The surface-treated phosphor particles were observed by scanning electron microscopy, and an X-ray photoelectron spectrometer was used to characterize the surface. The presence of surface envelope and/or additive improved the moisture resistance properties of the phosphor by decreasing the concentration of La(OH)2+ ion which acts as a catalyst in the hydrolysis of LaOBr.

    Original languageEnglish
    Pages (from-to)331-342
    Number of pages12
    JournalReactivity of Solids
    Volume7
    Issue number4
    DOIs
    Publication statusPublished - 1989 Nov

    ASJC Scopus subject areas

    • Engineering(all)

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