Scintillator application of CsPbBr<sub>3</sub> quantum dots-embedded SiO<sub>2</sub> glasses
Abstract CsPbBr 3 quantum dots-embedded SiO 2 glasses were synthesized by the spark plasma sintering method as novel scintillators for γ -ray detectors. Their optical and scintillation properties were investigated to examine the scintillation performance. The X-ray diffraction patterns observed a halo peak of the SiO 2 glass phase and diffraction peaks of CsPbBr 3 . An emission peak due to CsPbBr 3 quantum dots was detected at around 515 nm in both photoluminescence (PL) and scintillation spectra. The PL and scintillation decay time curves included a component of nanosecond order, resulting from CsPbBr 3 quantum dots. Under γ -ray irradiation from 137 Cs, the light yield ( LY ) of the 0.2% CsPbBr 3 -embedded SiO 2 glass was 150 photons MeV −1 .
Authors
- Keisuke Asai (ORCID: https://orcid.org/0000-0002-9330-4972)
- Daiki Shiratori (ORCID: https://orcid.org/0000-0002-7603-9222)
- Daisuke Nakauchi (ORCID: https://orcid.org/0000-0001-6686-4694)
- Akito Watanabe (ORCID: https://orcid.org/0000-0001-7828-1779)
- Kai Okazaki (ORCID: https://orcid.org/0000-0003-2257-1915)
- Noriaki Kawaguchi (ORCID: https://orcid.org/0000-0002-6835-9437)
- Yutaka Fujimoto (ORCID: https://orcid.org/0000-0002-1202-8065)
- Takayuki Yanagida (ORCID: https://orcid.org/0000-0002-7326-5849)
- Takumi Kato (ORCID: https://orcid.org/0000-0002-5650-4449)
- Akihiro Nishikawa (ORCID: https://orcid.org/0000-0001-9858-083X)
Institutions
- Tokyo University of Science (JP)
- Tohoku University (JP)
- Nara Institute of Science and Technology (JP)
Publication Details
- Journal
- Japanese Journal of Applied Physics
- Published
- 2024-08-09
- DOI
- https://doi.org/10.35848/1347-4065/ad6dc1
- Primary Topic
- Luminescence Properties of Advanced Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Foundation for Nara Institute of Science and Technology
- Research Center for Biomedical Engineering
- Iwatani Naoji Foundation
- Iketani Science and Technology Foundation
- Tokuyama Science Foundation