Synthesis and formation process of SrSO(4):Sm(3+) phosphors with hierarchical structures and its electron trapping luminescence properties

Novel three-dimensional (3D) flower-like Strontium sulfate (SrSO(4)) microstructures with hierarchical architecture were successfully fabricated by using Sr(N03)2 react with Na2SO(4) aqueous solution under ambient conditions at room temperature. The SrSO(4) flower-like microcrystals have a uniform d...

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Bibliographic Details
Published inJournal of alloys and compounds Vol. 574; pp. 560 - 564
Main Authors Sun, Jiayue, Sun, Guangchao, Xue, Bing, Cui, Dianpeng
Format Journal Article
LanguageEnglish
Published 15.10.2013
Subjects
Alloys
Electronics
Luminescence
Phosphors
Photoluminescence
Sulfates
Three dimensional
Trapping
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Summary:Novel three-dimensional (3D) flower-like Strontium sulfate (SrSO(4)) microstructures with hierarchical architecture were successfully fabricated by using Sr(N03)2 react with Na2SO(4) aqueous solution under ambient conditions at room temperature. The SrSO(4) flower-like microcrystals have a uniform diameter of about 10 mu m, which are composed of numerous well-aligned single tablet-like SrSO(4) crystals oriented radially to their center. The growth mechanism of the flower-like hierarchical celestine particles is discussed to obtain a better understanding on their formation process. XRD patterns confirm the single crystal phase of SrSO(4). In the photoluminescence property investigations of SrSO(4):Sm(3+), narrow bands observed are well identified with the electronic transition configurations of Sm(3+). The temperature-dependent photoluminescence spectra show that the temperature of maximum emission intensity is 25 degree C. The thermal stability and electron trapping luminescence properties were also characterized.
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ISSN:0925-8388