Thermally Stimulated Luminescence Properties of Dy-doped CaYAl3O7 Single Crystals
In this study, we prepared CaYAl 3 O 7 single crystals doped with 0.1, 0.5, and 1.0% Dy by the floating zone method, and investigated their photoluminescence (PL) and thermally stimulated luminescence (TSL) properties.All samples showed the luminescence of Dy 3+ at approximately 480, 570, 660, 750, and 830 nm in PL, and PL quantum yields (QYs) were 3.9-45%.TSL glow curve measurements showed peaks at about 70 and 250 for the 0.1 and 0.5% Dy-doped samples, while the 1.0% Dy-doped sample had a peak only at around 70 .The 0.5% Dy-doped sample indicated the highest TSL intensity among all samples and linearity in the 1-1000 mGy range.The lower detection limit of the 0.5% Dy-doped sample was 1 mGy.
Authors
- Daisuke Nakauchi (ORCID: https://orcid.org/0000-0001-6686-4694)
- Noriaki Kawaguchi (ORCID: https://orcid.org/0000-0002-6835-9437)
- Kensei Ichiba (ORCID: https://orcid.org/0000-0001-6887-5952)
- Takumi Kato (ORCID: https://orcid.org/0000-0002-5650-4449)
- Yanagida Takayuki (ORCID: https://orcid.org/0000-0002-4298-5886)
- Akihiro Nishikawa (ORCID: https://orcid.org/0000-0001-9858-083X)
Institutions
- Nara Institute of Science and Technology (JP)
Publication Details
- Journal
- Sensors and Materials
- Published
- 2025-02-06
- DOI
- https://doi.org/10.18494/sam5429
- Citations
- 1
- Primary Topic
- Luminescence Properties of Advanced Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.52
Funders
- Foundation for Nara Institute of Science and Technology
- Ministry of Education, Culture, Sports, Science and Technology
- Iwatani Naoji Foundation
- Iketani Science and Technology Foundation
- Tokuyama Science Foundation
- Japan Society for the Promotion of Science