Luminescence and scintillation characteristics of Cs3ScCl6:Ce crystals

Keisuke Takahashi; Miki Arai; Masanori Koshimizu; Yutaka Fujimoto; Takayuki Yanagida; Keisuke Asai

doi:10.1016/j.ceramint.2020.03.113

Luminescence and scintillation characteristics of Cs₃ScCl₆:Ce crystals

Keisuke Takahashi, Miki Arai, Masanori Koshimizu, Yutaka Fujimoto, Takayuki Yanagida, Keisuke Asai

ENG - Applied Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

In this study, we fabricated Cs₃ScCl₆ crystals doped with different concentrations of Ce and investigated their luminescence properties. In both the photoluminescence (PL) and scintillation spectra, emission bands attributable to Ce³⁺ 5d–4f transition were observed. The PL temporal profiles revealed decay time constants of ~35 ns, which are typical values for Ce³⁺ 5d–4f transition. In the scintillation temporal profiles, two decay components were observed. The fast and slow components could be attributed to Ce³⁺ 5d–4f luminescence and self-trapped excitons (STEs) or a slow energy transfer from STEs to Ce³⁺, respectively. The maximum light yield was 9200 photons/MeV for a Ce concentration of 0.5 mol%.

Original language	English
Pages (from-to)	26346-26349
Number of pages	4
Journal	Ceramics International
Volume	46
Issue number	16
DOIs	https://doi.org/10.1016/j.ceramint.2020.03.113
Publication status	Published - 2020 Nov

Keywords

Ce+ 5d-4f transition
Inorganic crystals
Scintillator

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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title = "Luminescence and scintillation characteristics of Cs3ScCl6:Ce crystals",

abstract = "In this study, we fabricated Cs3ScCl6 crystals doped with different concentrations of Ce and investigated their luminescence properties. In both the photoluminescence (PL) and scintillation spectra, emission bands attributable to Ce3+ 5d–4f transition were observed. The PL temporal profiles revealed decay time constants of ~35 ns, which are typical values for Ce3+ 5d–4f transition. In the scintillation temporal profiles, two decay components were observed. The fast and slow components could be attributed to Ce3+ 5d–4f luminescence and self-trapped excitons (STEs) or a slow energy transfer from STEs to Ce3+, respectively. The maximum light yield was 9200 photons/MeV for a Ce concentration of 0.5 mol%.",

keywords = "Ce+ 5d-4f transition, Inorganic crystals, Scintillator",

author = "Keisuke Takahashi and Miki Arai and Masanori Koshimizu and Yutaka Fujimoto and Takayuki Yanagida and Keisuke Asai",

year = "2020",

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T1 - Luminescence and scintillation characteristics of Cs3ScCl6:Ce crystals

AU - Takahashi, Keisuke

AU - Arai, Miki

AU - Koshimizu, Masanori

AU - Fujimoto, Yutaka

AU - Yanagida, Takayuki

AU - Asai, Keisuke

PY - 2020/11

Y1 - 2020/11

N2 - In this study, we fabricated Cs3ScCl6 crystals doped with different concentrations of Ce and investigated their luminescence properties. In both the photoluminescence (PL) and scintillation spectra, emission bands attributable to Ce3+ 5d–4f transition were observed. The PL temporal profiles revealed decay time constants of ~35 ns, which are typical values for Ce3+ 5d–4f transition. In the scintillation temporal profiles, two decay components were observed. The fast and slow components could be attributed to Ce3+ 5d–4f luminescence and self-trapped excitons (STEs) or a slow energy transfer from STEs to Ce3+, respectively. The maximum light yield was 9200 photons/MeV for a Ce concentration of 0.5 mol%.

AB - In this study, we fabricated Cs3ScCl6 crystals doped with different concentrations of Ce and investigated their luminescence properties. In both the photoluminescence (PL) and scintillation spectra, emission bands attributable to Ce3+ 5d–4f transition were observed. The PL temporal profiles revealed decay time constants of ~35 ns, which are typical values for Ce3+ 5d–4f transition. In the scintillation temporal profiles, two decay components were observed. The fast and slow components could be attributed to Ce3+ 5d–4f luminescence and self-trapped excitons (STEs) or a slow energy transfer from STEs to Ce3+, respectively. The maximum light yield was 9200 photons/MeV for a Ce concentration of 0.5 mol%.

KW - Ce+ 5d-4f transition

KW - Inorganic crystals

KW - Scintillator

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