Open AccessSynthesis and photoluminescence properties of rare earth doped BaAl2S4 and MgAl2S4 phosphor
Author(s) -
Anjali R. Gharpure,
S. P. Wankhede
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1913/1/012037
Subject(s) - photoluminescence , phosphor , doping , reducing atmosphere , materials science , mineralogy , analytical chemistry (journal) , chemistry , metallurgy , optoelectronics , organic chemistry
Different synthesis techniques for BaAl 2 S 4 have been described in literature. Conventionally thioaluminates (BaAl 2 S 4 ) were prepared by solid state reaction. BaAl 2 S 4 was prepared by using BaS and Al 2 S 3 in H 2 S atmosphere [1, 2]. Sulfurization reduction of multi component oxide precursor was used to prepare BaAl2S4 in CS 2 atmosphere at 1050°C. [2, 3]. Oh et al. [4] prepared MgAl 2 S 4 doped with Co 2+ by the chemical transport reaction method. All these methods require proper apparatus and they are difficult to handle. The synthesis method and photoluminescence properties of MgAl 2 S 4 :Eu2+ and BaAl 2 S 4 :Ce 3+ phosphors are reported. In this paper wet chemical co-precipitation method is described for synthesis of magnesium and barium aluminates. BaAl 2 S 4 and MgAl 2 S 4 phosphors doped with Eu 2+ and Ce 3+ shows strong excitation in nUV region. This method is very simple and does not require H 2 S gas flow [2]. We successfully prepared MgAl 2 S 4 :Eu2+ and BaAl 2 S 4 :Ce 3+ powders by this method. MgAl 2 S 4 doped with Eu 2+ act as blue component in display application.