Influence of alkali metal compound fluxes on Gd2O2S:Tb particle and luminescence

Yujie Ding, Weimin Yang, Qitu Zhang, Lixi Wang

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18 Scopus citations

Abstract

Gd2O2S:Tb phosphors with different alkali-metal compound fluxes were synthesized by molten salt method, showing high luminous intensity, monodispersity and micron size characteristics. The results indicated that from K+ to Na+ and to Li+, the particles mean size tended to grow bigger. K+ could effectively reduce the particle size without depressing the luminescence intensity. Meanwhile, after comparing the strongest emission intensity among different fluxes, it was shown that K+ had most significance on improving the luminescence intensity. Li+ could promote the formation of hexagonal morphology. It was also found that CO32−, PO43− had prominent effects on optimizing particles size (at 254 nm excitation).

Original languageEnglish
Pages (from-to)1982-1986
Number of pages5
JournalJournal of Materials Science: Materials in Electronics
Volume26
Issue number3
DOIs
StatePublished - Mar 2015

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