Improvement of thermal damage resistance of SrAl2O4:Eu2+, Dy3+ persistent phosphor by a low temperature pre-annealing and its mechanism

被引：0

作者：

Chen, Dongshun ^{[1
,2
]}

Zhou, Tianyuan ^{[1
,2
]}

Zhang, Le ^{[1
,2
,3
]}

Tian, Wen ^{[1
]}

Zhang, Xinyuan ^{[2
]}

Shi, Chaofan ^{[2
]}

Wang, Hongsen ^{[1
]}

Zhou, Zihan ^{[1
]}

Huang, Baojin ^{[4
]}

Strek, Wieslaw ^{[5
]}

Chen, Hao ^{[1
,2
,6
]}

机构：

[1] Jiangsu Normal Univ, Sch Phys & Elect Engn, Jiangsu Key Lab Adv Laser Mat & Devices, Xuzhou 221116, Peoples R China

[2] Jiangsu Xiyi Adv Mat Res Inst Ind Technol, Xuzhou 221400, Peoples R China

[3] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[4] Jiangnan Shipyard Grp Co Ltd, Shanghai 201913, Peoples R China

[5] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

[6] Suzhou Univ Sci & Technol, Sch Phys Sci & Technol, Suzhou 215009, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2024年 / 125卷 / 14期

基金：

中国国家自然科学基金;

关键词：

STIMULATED LUMINESCENCE; EU2+; ALUMINATE; AFTERGLOW; MECHANOLUMINESCENCE; THERMOLUMINESCENCE; CE3+;

D O I：

10.1063/5.0233664

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

SrAl2O4:Eu2+, Dy3+ as an excellent persistent phosphor has been widely applied in many fields. However, the high temperature induced thermal failure has always been a bottleneck problem restricting its long-term development. In this study, a simple pre-annealing method was utilized to improve the thermal damage resistance ability of SrAl2O4:Eu2+, Dy3+ persistent phosphors. After annealing at 900 degrees C, the afterglow duration time of the phosphor pre-annealed at 400 degrees C reached 233 min, which was twice longer than that of the phosphor without pre-annealing. An extrinsic vacancy defect migration theory at an elevated temperature was proposed to explain the interesting phenomenon. This study introduced a path to enhance the thermal stability of SrAl2O4:Eu2+, Dy3+ persistent phosphors and provided a thought to design persistent luminescence materials with desired thermal stability.

引用

页数：7

共 45 条

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