Growth of Tb-doped BaCl2/NaCl/KCl ternary eutectic and its luminescence properties

Yui Takizawa; Kei Kamada; Kyoung Jin Kim; Masao Yoshino; Akihiro Yamaji; Shunsuke Kurosawa; Yuui Yokota; Hiroki Sato; Satoshi Toyoda; Yuji Ohashi; Takashi Hanada; Vladimir V. Kochurikhin; Akira Yoshikawa

doi:10.1016/j.jcrysgro.2021.126467

Growth of Tb-doped BaCl₂/NaCl/KCl ternary eutectic and its luminescence properties

Yui Takizawa, Kei Kamada, Kyoung Jin Kim, Masao Yoshino, Akihiro Yamaji, Shunsuke Kurosawa, Yuui Yokota, Hiroki Sato, Satoshi Toyoda, Yuji Ohashi, Takashi Hanada, Vladimir V. Kochurikhin, Akira Yoshikawa

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

2 Citations (Scopus)

Abstract

In this study, Tb:BaCl₂ and NaCl/KCl ternary eutectics were grown using quartz ampoules via the vertical Bridgman–Stockbarger method. Each crystal phase had a polygonal columnar shape with a length of 300 µm along the growth direction. The Tb:BaCl₂ scintillator phase grew in the columnar phase. The BaCl₂ scintillator phase is expected to make optical waveguides of the scintillation light. The expected Tb³⁺ emission peak was observed at approximately 360–630 nm under X-ray irradiation. This emission is mainly attributed to the Tb³⁺⁵D₄→⁷F₆, ⁷F₆, ⁷F₅, ⁷F₄, and ⁷F₃ transitions and BaCl₂ host emission transition. The photoluminescence decay times of the Tb:BaCl₂/NaCl/KCl eutectics was 0.49 ms (7.5%) and 6.64 ms (92.5%).

Original language	English
Article number	126467
Journal	Journal of Crystal Growth
Volume	580
DOIs	https://doi.org/10.1016/j.jcrysgro.2021.126467
Publication status	Published - 2022 Feb 15

Keywords

A1.Eutectics
A2.Bridgman technique
B1.Halides
B2.Scintillator materials
B3.Scintillators

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.jcrysgro.2021.126467

Cite this

@article{a5b4003ab24a43ca894b224ddb0f121c,

title = "Growth of Tb-doped BaCl2/NaCl/KCl ternary eutectic and its luminescence properties",

abstract = "In this study, Tb:BaCl2 and NaCl/KCl ternary eutectics were grown using quartz ampoules via the vertical Bridgman–Stockbarger method. Each crystal phase had a polygonal columnar shape with a length of 300 µm along the growth direction. The Tb:BaCl2 scintillator phase grew in the columnar phase. The BaCl2 scintillator phase is expected to make optical waveguides of the scintillation light. The expected Tb3+ emission peak was observed at approximately 360–630 nm under X-ray irradiation. This emission is mainly attributed to the Tb3+5D4→7F6, 7F6, 7F5, 7F4, and 7F3 transitions and BaCl2 host emission transition. The photoluminescence decay times of the Tb:BaCl2/NaCl/KCl eutectics was 0.49 ms (7.5%) and 6.64 ms (92.5%).",

keywords = "A1.Eutectics, A2.Bridgman technique, B1.Halides, B2.Scintillator materials, B3.Scintillators",

author = "Yui Takizawa and Kei Kamada and {Jin Kim}, Kyoung and Masao Yoshino and Akihiro Yamaji and Shunsuke Kurosawa and Yuui Yokota and Hiroki Sato and Satoshi Toyoda and Yuji Ohashi and Takashi Hanada and Kochurikhin, {Vladimir V.} and Akira Yoshikawa",

note = "Funding Information: This work was partially supported by JSPS KAKENHI , Grant No. 19H00672, 17H06159, 18H01222, 19H00881, 19 K12626 , and 20 K20488 . In addition, authors would like to thank following persons for their support: Mr. Shigeru Otsuka and Mr. Masahiro Fukukawa at the University of Tokyo and the Nanotechnology Platform project by the Ministry of Education, Culture, Sports, Science and Technology of Japan. We also would like to thank Editage (www.editage.com) for English language editing. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2022",

month = feb,

day = "15",

doi = "10.1016/j.jcrysgro.2021.126467",

language = "English",

volume = "580",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier",

}

TY - JOUR

T1 - Growth of Tb-doped BaCl2/NaCl/KCl ternary eutectic and its luminescence properties

AU - Takizawa, Yui

AU - Kamada, Kei

AU - Jin Kim, Kyoung

AU - Yoshino, Masao

AU - Yamaji, Akihiro

AU - Kurosawa, Shunsuke

AU - Yokota, Yuui

AU - Sato, Hiroki

AU - Toyoda, Satoshi

AU - Ohashi, Yuji

AU - Hanada, Takashi

AU - Kochurikhin, Vladimir V.

AU - Yoshikawa, Akira

N1 - Funding Information: This work was partially supported by JSPS KAKENHI , Grant No. 19H00672, 17H06159, 18H01222, 19H00881, 19 K12626 , and 20 K20488 . In addition, authors would like to thank following persons for their support: Mr. Shigeru Otsuka and Mr. Masahiro Fukukawa at the University of Tokyo and the Nanotechnology Platform project by the Ministry of Education, Culture, Sports, Science and Technology of Japan. We also would like to thank Editage (www.editage.com) for English language editing. Publisher Copyright: © 2021 Elsevier B.V.

PY - 2022/2/15

Y1 - 2022/2/15

N2 - In this study, Tb:BaCl2 and NaCl/KCl ternary eutectics were grown using quartz ampoules via the vertical Bridgman–Stockbarger method. Each crystal phase had a polygonal columnar shape with a length of 300 µm along the growth direction. The Tb:BaCl2 scintillator phase grew in the columnar phase. The BaCl2 scintillator phase is expected to make optical waveguides of the scintillation light. The expected Tb3+ emission peak was observed at approximately 360–630 nm under X-ray irradiation. This emission is mainly attributed to the Tb3+5D4→7F6, 7F6, 7F5, 7F4, and 7F3 transitions and BaCl2 host emission transition. The photoluminescence decay times of the Tb:BaCl2/NaCl/KCl eutectics was 0.49 ms (7.5%) and 6.64 ms (92.5%).

AB - In this study, Tb:BaCl2 and NaCl/KCl ternary eutectics were grown using quartz ampoules via the vertical Bridgman–Stockbarger method. Each crystal phase had a polygonal columnar shape with a length of 300 µm along the growth direction. The Tb:BaCl2 scintillator phase grew in the columnar phase. The BaCl2 scintillator phase is expected to make optical waveguides of the scintillation light. The expected Tb3+ emission peak was observed at approximately 360–630 nm under X-ray irradiation. This emission is mainly attributed to the Tb3+5D4→7F6, 7F6, 7F5, 7F4, and 7F3 transitions and BaCl2 host emission transition. The photoluminescence decay times of the Tb:BaCl2/NaCl/KCl eutectics was 0.49 ms (7.5%) and 6.64 ms (92.5%).

KW - A1.Eutectics

KW - A2.Bridgman technique

KW - B1.Halides

KW - B2.Scintillator materials

KW - B3.Scintillators

UR - http://www.scopus.com/inward/record.url?scp=85121205640&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85121205640&partnerID=8YFLogxK

U2 - 10.1016/j.jcrysgro.2021.126467

DO - 10.1016/j.jcrysgro.2021.126467

M3 - Article

AN - SCOPUS:85121205640

SN - 0022-0248

VL - 580

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

M1 - 126467

ER -