Photochemical synthesis and characterization of multi-component (Gd, Lu)3(Ga,Al)5O12: Ce garnet powders

被引：4
作者：
Barta, J. [1 ,2 ]
Mullerova, E. [1 ]
Kuzar, M. [1 ]
Prochazkova, L. [1 ,2 ]
Kurcerkova, R. [2 ]
Jakubec, I. [3 ]
Cuba, V. [1 ]
机构：
[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Brehova 7, Prague 11519 1, Czech Republic
[2] Acad Sci Czech Republ, Inst Phys, Cukrovarnicka 10, Prague 16253 6, Czech Republic
[3] Acad Sci Czech Republ, Inst Inorgan Chem, Husinec Rez 1001, CZ-25068 Rez, Czech Republic
来源：
RADIATION MEASUREMENTS | 2019年 / 124卷
关键词：
Garnet; Synthesis; Nanomaterial; X-ray diffraction; Radioluminescence; CRYSTALS; GROWTH;
D O I：
10.1016/j.radmeas.2019.03.012
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Photochemical synthesis was used for the formation of solid precursors for multi-component Ce-doped (Gd1-xLux)(3)(Ga1-yAly)(5)O-12. Elemental composition of the solid precursors was evaluated by X-ray fluorescence spectroscopy and the samples were then heated in air to obtain garnet powders. The calcination temperature was correlated with the composition of the powder. The X-ray diffraction revealed that for high Gd content at lower temperatures, impurities such as Gd-3(GaO4)O-2 were present along with the garnet phase; increased calcination temperature was required for a pure garnet phase. The highly luminescent powders exhibited typical Ce3+ 5d-4f emission in visible range when excited by X-rays, with shifts in emission maximum caused by the changes in sample composition.
引用
收藏
页码：98 / 102
页数：5
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