The State of Dy Incorporated in SrAl2O4 Crystals by Low-temperature Annealing and Its Photoluminescence and Afterglow Properties

被引：0
|
作者：
Nakamura, Hitomi [1 ,2 ]
Akai, Tomoko [1 ]
Kadono, Kohei [2 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, 1-8-31 Midorigaoka, Ikeda, Osaka 5638577, Japan
[2] Kyoto Inst Technol, Fac Mat Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan
来源：
CHEMISTRY LETTERS | 2022年 / 51卷 / 02期
关键词：
SrAl2O4:Eu; Dy; Amorphous precursor; Afterglow property; PHOSPHOR; LUMINESCENCE; MECHANISM; EU2+;
D O I：
10.1246/cl.210654
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We synthesized SrAl2O4:Eu,Dy by a polymerized complex method with low-temperature annealing and investigated the effect of this annealing treatment on the state of Dy incorporated in SrAl2O4 sintered at 1080 degrees C. At 4%, Dy was incorporated completely in the SrAl2O4 when pre-annealed at 650 degrees C (3 h) followed by 750 degrees C (3 h). Photoluminescence and afterglow properties improved owing to pre-annealing. The results indicate that annealing at an appropriate temperature enables high doping and homogeneous Dy distribution in the crystals.
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页码：197 / 200
页数：4
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