Improvement of thermal damage resistance of SrAl2O4:Eu2+, Dy3+ persistent phosphor by a low temperature pre-annealing and its mechanism
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 °C, the afterglow duration time of the phosphor pre-annealed at 400 °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.
Authors
- Hongsen Wang (ORCID: https://orcid.org/0000-0001-7926-2895)
- W. Stręk (ORCID: https://orcid.org/0000-0002-5063-5317)
- Chaofan Shi
- Tianyuan Zhou (ORCID: https://orcid.org/0000-0002-6551-4497)
- Dongshun Chen (ORCID: https://orcid.org/0009-0006-9888-5653)
- Hao Chen (ORCID: https://orcid.org/0000-0002-9556-5893)
- Le Zhang (ORCID: https://orcid.org/0000-0001-7528-5635)
- Wen Tian (ORCID: https://orcid.org/0000-0002-7307-783X)
- Zihan Zhou (ORCID: https://orcid.org/0009-0007-0754-4851)
- Baojin Huang
- Xinyuan Zhang (ORCID: https://orcid.org/0000-0003-0084-5911)
Institutions
- Jiangsu Normal University (CN)
- Shandong University (CN)
- Suzhou University of Science and Technology (CN)
- Jiangnan Industry Group (China) (CN)
- State Key Laboratory of Crystal Materials
- Polish Academy of Sciences (PL)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2024-09-30
- DOI
- https://doi.org/10.1063/5.0233664
- Citations
- 2
- Primary Topic
- Luminescence Properties of Advanced Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.23
Funders
- State Key Laboratory of Crystal Materials
- National Natural Science Foundation of China
- Natural Science Foundation of Jiangsu Province
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Jiangsu Provincial Key Research and Development Program
- International Science and Technology Cooperation Program of Jiangsu Province
- National Key Research and Development Program of China
- Xuzhou Science and Technology Program