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[Gd-doped natural thenardite: Eu photoluminescence properties of europium].

Authors
Type
Published Article
Journal
Guang pu xue yu guang pu fen xi = Guang pu
Publication Date
Volume
32
Issue
6
Pages
1496–1499
Identifiers
PMID: 22870627
Source
Medline

Abstract

The authors prepared Na2SO4: Eu, Gd, and Na2Gd2 (SO4)4: Eu phosphors by heating, the mixed powder of GdF3, EuF3 and natural mirabilite with muffle furnace at 1 000 degrees C for 30 min and continually heating it with microwave at 750 degrees C for 10 min. With increasing the concentrations of Gd ion, the 610 nm emission intensity due to Eu3+ was strengthened. Gd3+ probably formed a bridge between substrate and the activator so that the energy is able to be transferred efficiently. The luminescence intensity, along with colorimetric purity, reaches the top with 21 mol% Gd3+ doping in the thenardite (Na2SO4: Eu) lattices, eventually coming up the quenching effects of concentration.

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