Control of mean ionic radius at Ca site by Sr co-doping for Ce doped LiCaAlF6 single crystals and the effects on optical and scintillation properties

Yuui Yokota; Akihiro Yamaji; Shunsuke Kurosawa; Kei Kamada; Akira Yoshikawa

doi:10.1016/j.optmat.2014.02.025

Control of mean ionic radius at Ca site by Sr co-doping for Ce doped LiCaAlF₆ single crystals and the effects on optical and scintillation properties

Yuui Yokota, Akihiro Yamaji, Shunsuke Kurosawa, Kei Kamada, Akira Yoshikawa

研究成果: Article › 査読

6 被引用数 (Scopus)

抄録

Sr co-doped Ce:LiCaAlF₆ [Ce:Li(Ca,Sr)AlF₆] crystals with various Ca/Sr ratios were grown by a micro-pulling-down (μ-PD) method and effects of Sr co-doping on crystal structure, chemical composition, optical and scintillation properties for Ce:LiCaAlF₆ crystals were investigated as a neutron scintillator. High transparent Ce2%:Li(Ca,Sr)AlF ₆ crystals with 2% and 5% Sr contents were obtained while Ce2%:Li(Ca,Sr)AlF₆ crystals with 10% and 20% Sr contents included milky parts in the crystals. a- and c-axis lengths of Ce:Li(Ca,Sr)AlF ₆ phase systematically increased with an increase of Sr content. In addition to the emission at 284 and 308 nm from Ce³⁺ ion, emission peaks at 367 nm appeared by Sr co-doping.

本文言語	English
ページ（範囲）	1950-1953
ページ数	4
ジャーナル	Optical Materials
巻	36
号	12
DOI	https://doi.org/10.1016/j.optmat.2014.02.025
出版ステータス	Published - 2014 10

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
コンピュータサイエンス（全般）
原子分子物理学および光学
分光学
物理化学および理論化学
有機化学
無機化学
電子工学および電気工学

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10.1016/j.optmat.2014.02.025

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引用スタイル

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abstract = "Sr co-doped Ce:LiCaAlF6 [Ce:Li(Ca,Sr)AlF6] crystals with various Ca/Sr ratios were grown by a micro-pulling-down (μ-PD) method and effects of Sr co-doping on crystal structure, chemical composition, optical and scintillation properties for Ce:LiCaAlF6 crystals were investigated as a neutron scintillator. High transparent Ce2%:Li(Ca,Sr)AlF 6 crystals with 2% and 5% Sr contents were obtained while Ce2%:Li(Ca,Sr)AlF6 crystals with 10% and 20% Sr contents included milky parts in the crystals. a- and c-axis lengths of Ce:Li(Ca,Sr)AlF 6 phase systematically increased with an increase of Sr content. In addition to the emission at 284 and 308 nm from Ce3+ ion, emission peaks at 367 nm appeared by Sr co-doping.",

keywords = "Crystal, Neutron, Scintillator",

author = "Yuui Yokota and Akihiro Yamaji and Shunsuke Kurosawa and Kei Kamada and Akira Yoshikawa",

note = "Funding Information: This work is partially supported by Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) and Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP), JST .",

year = "2014",

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doi = "10.1016/j.optmat.2014.02.025",

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AU - Yokota, Yuui

AU - Yamaji, Akihiro

AU - Kurosawa, Shunsuke

AU - Kamada, Kei

AU - Yoshikawa, Akira

N1 - Funding Information: This work is partially supported by Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) and Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP), JST .

PY - 2014/10

Y1 - 2014/10

N2 - Sr co-doped Ce:LiCaAlF6 [Ce:Li(Ca,Sr)AlF6] crystals with various Ca/Sr ratios were grown by a micro-pulling-down (μ-PD) method and effects of Sr co-doping on crystal structure, chemical composition, optical and scintillation properties for Ce:LiCaAlF6 crystals were investigated as a neutron scintillator. High transparent Ce2%:Li(Ca,Sr)AlF 6 crystals with 2% and 5% Sr contents were obtained while Ce2%:Li(Ca,Sr)AlF6 crystals with 10% and 20% Sr contents included milky parts in the crystals. a- and c-axis lengths of Ce:Li(Ca,Sr)AlF 6 phase systematically increased with an increase of Sr content. In addition to the emission at 284 and 308 nm from Ce3+ ion, emission peaks at 367 nm appeared by Sr co-doping.

AB - Sr co-doped Ce:LiCaAlF6 [Ce:Li(Ca,Sr)AlF6] crystals with various Ca/Sr ratios were grown by a micro-pulling-down (μ-PD) method and effects of Sr co-doping on crystal structure, chemical composition, optical and scintillation properties for Ce:LiCaAlF6 crystals were investigated as a neutron scintillator. High transparent Ce2%:Li(Ca,Sr)AlF 6 crystals with 2% and 5% Sr contents were obtained while Ce2%:Li(Ca,Sr)AlF6 crystals with 10% and 20% Sr contents included milky parts in the crystals. a- and c-axis lengths of Ce:Li(Ca,Sr)AlF 6 phase systematically increased with an increase of Sr content. In addition to the emission at 284 and 308 nm from Ce3+ ion, emission peaks at 367 nm appeared by Sr co-doping.

KW - Crystal

KW - Neutron

KW - Scintillator

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