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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