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

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 °C. At 4%, Dy was incorporated completely in the SrAl2O4 when pre-annealed at 650 °C (3 h) f...

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Bibliographic Details
Published in:Chemistry letters 2022-02, Vol.51 (2), p.197-200
Main Authors: Nakamura, Hitomi, Akai, Tomoko, Kadono, Kohei
Format: Article
Language:English
Subjects:
Annealing
Low temperature
Photoluminescence
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Summary: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 °C. At 4%, Dy was incorporated completely in the SrAl2O4 when pre-annealed at 650 °C (3 h) followed by 750 °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.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.210654