Crystal growth and optical properties of Ce:(La,Gd)2Ge 2O7 grown by the floating zone method

Shunsuke Kurosawa; Toetsu Shishido; Takamasa Sugawara; Kunio Yubuta; Pejchal Jan; Akira Suzuki; Yuui Yokota; Yasuhiro Shoji; Kei Kamada; Akira Yoshikawa

doi:10.1016/j.jcrysgro.2013.12.038

Crystal growth and optical properties of Ce:(La,Gd)₂Ge ₂O₇ grown by the floating zone method

Shunsuke Kurosawa, Toetsu Shishido, Takamasa Sugawara, Kunio Yubuta, Pejchal Jan, Akira Suzuki, Yuui Yokota, Yasuhiro Shoji, Kei Kamada, Akira Yoshikawa

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

7 Citations (Scopus)

Abstract

Some pyrosilicate scintillators such as Ce:Gd₂Si ₂O₇ and Ce:Lu₂Si₂O₇ have a good light output, and especially Ce:(Gd,La)₂Si₂O ₇ has an excellent light output of over 36,000 ph/MeV. In order to search novel scintilators, we have developed a pyrogermanate-based scintillation material (Ce_0.01,Gd_0.90,La_0.09) ₂Ge₂O₇ using the floating zone method. Although the light output was decreased due to quenching, 5d-4f transition of Ce ³⁺ was observed around 480 nm in photo- and radio-luminescence spectra. This emission wavelength was longer than that of (Ce _0.01,Gd_0.90,La_0.09)₂Si ₂O₇ with an emission wavelength of 390 nm.

Original language	English
Pages (from-to)	142-144
Number of pages	3
Journal	Journal of Crystal Growth
Volume	393
DOIs	https://doi.org/10.1016/j.jcrysgro.2013.12.038
Publication status	Published - 2014 May 1

Keywords

A2. Floating zone technique
B2. Scintillator materials
B3. Scintillators
Optical property
Pyrochlore
Pyrogermanate
Pyrosillicate

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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10.1016/j.jcrysgro.2013.12.038

Cite this

Crystal growth and optical properties of Ce:(La,Gd)₂Ge ₂O₇ grown by the floating zone method. / Kurosawa, Shunsuke; Shishido, Toetsu; Sugawara, Takamasa; Yubuta, Kunio; Jan, Pejchal; Suzuki, Akira; Yokota, Yuui; Shoji, Yasuhiro; Kamada, Kei ; Yoshikawa, Akira.

In: Journal of Crystal Growth, Vol. 393, 01.05.2014, p. 142-144.

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

@article{19a79c3b98394db48ee47a40eb84a598,

title = "Crystal growth and optical properties of Ce:(La,Gd)2Ge 2O7 grown by the floating zone method",

abstract = "Some pyrosilicate scintillators such as Ce:Gd2Si 2O7 and Ce:Lu2Si2O7 have a good light output, and especially Ce:(Gd,La)2Si2O 7 has an excellent light output of over 36,000 ph/MeV. In order to search novel scintilators, we have developed a pyrogermanate-based scintillation material (Ce0.01,Gd0.90,La0.09) 2Ge2O7 using the floating zone method. Although the light output was decreased due to quenching, 5d-4f transition of Ce 3+ was observed around 480 nm in photo- and radio-luminescence spectra. This emission wavelength was longer than that of (Ce 0.01,Gd0.90,La0.09)2Si 2O7 with an emission wavelength of 390 nm.",

keywords = "A2. Floating zone technique, B2. Scintillator materials, B3. Scintillators, Optical property, Pyrochlore, Pyrogermanate, Pyrosillicate",

author = "Shunsuke Kurosawa and Toetsu Shishido and Takamasa Sugawara and Kunio Yubuta and Pejchal Jan and Akira Suzuki and Yuui Yokota and Yasuhiro Shoji and Kei Kamada and Akira Yoshikawa",

note = "Funding Information: This work is partially supported by (i) the Japan Society for the Promotion of Science (JSPS) Research Fellowships for Young Scientists (S. Kurosawa), (ii) the Funding Program for Next Generation World-Leading Researchers, JSPS , (iii) the Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) (iv) the Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP), JST , (v) the Association for the Progress of New Chemical Technology , (vi) the Murata Science Foundation and (vii) the Nippon Sheet Glass Foundation for Materials Science and Engineering . In addition, we would like to thank following persons for their support: Mr. Yoshihiro Nakamura in Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Mr. Hiroshi Uemura, Ms. Keiko Toguchi, Ms. Megumi Sasaki and Ms. Yuka Takeda in IMR/Tohoku University. ",

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doi = "10.1016/j.jcrysgro.2013.12.038",

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T1 - Crystal growth and optical properties of Ce:(La,Gd)2Ge 2O7 grown by the floating zone method

AU - Kurosawa, Shunsuke

AU - Shishido, Toetsu

AU - Sugawara, Takamasa

AU - Yubuta, Kunio

AU - Jan, Pejchal

AU - Suzuki, Akira

AU - Yokota, Yuui

AU - Shoji, Yasuhiro

AU - Kamada, Kei

AU - Yoshikawa, Akira

N1 - Funding Information: This work is partially supported by (i) the Japan Society for the Promotion of Science (JSPS) Research Fellowships for Young Scientists (S. Kurosawa), (ii) the Funding Program for Next Generation World-Leading Researchers, JSPS , (iii) the Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) (iv) the Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP), JST , (v) the Association for the Progress of New Chemical Technology , (vi) the Murata Science Foundation and (vii) the Nippon Sheet Glass Foundation for Materials Science and Engineering . In addition, we would like to thank following persons for their support: Mr. Yoshihiro Nakamura in Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Mr. Hiroshi Uemura, Ms. Keiko Toguchi, Ms. Megumi Sasaki and Ms. Yuka Takeda in IMR/Tohoku University.

PY - 2014/5/1

Y1 - 2014/5/1

N2 - Some pyrosilicate scintillators such as Ce:Gd2Si 2O7 and Ce:Lu2Si2O7 have a good light output, and especially Ce:(Gd,La)2Si2O 7 has an excellent light output of over 36,000 ph/MeV. In order to search novel scintilators, we have developed a pyrogermanate-based scintillation material (Ce0.01,Gd0.90,La0.09) 2Ge2O7 using the floating zone method. Although the light output was decreased due to quenching, 5d-4f transition of Ce 3+ was observed around 480 nm in photo- and radio-luminescence spectra. This emission wavelength was longer than that of (Ce 0.01,Gd0.90,La0.09)2Si 2O7 with an emission wavelength of 390 nm.

AB - Some pyrosilicate scintillators such as Ce:Gd2Si 2O7 and Ce:Lu2Si2O7 have a good light output, and especially Ce:(Gd,La)2Si2O 7 has an excellent light output of over 36,000 ph/MeV. In order to search novel scintilators, we have developed a pyrogermanate-based scintillation material (Ce0.01,Gd0.90,La0.09) 2Ge2O7 using the floating zone method. Although the light output was decreased due to quenching, 5d-4f transition of Ce 3+ was observed around 480 nm in photo- and radio-luminescence spectra. This emission wavelength was longer than that of (Ce 0.01,Gd0.90,La0.09)2Si 2O7 with an emission wavelength of 390 nm.

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KW - Pyrochlore

KW - Pyrogermanate

KW - Pyrosillicate

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