Photoluminescence and scintillation properties of Ce–doped Ca(Gd,Y)Al3O7 single crystals

Kenta Igashira; Daisuke Nakauchi; Yutaka Fujimoto; Takumi Kato; Noriaki Kawaguchi; Takayuki Yanagida

doi:10.1016/j.optmat.2019.109497

Photoluminescence and scintillation properties of Ce–doped Ca(Gd,Y)Al₃O₇ single crystals

Kenta Igashira, Daisuke Nakauchi, Yutaka Fujimoto, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida

ENG - Applied Chemistry

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

8 Citations (Scopus)

Abstract

Ce–doped Ca(Gd,Y)Al₃O₇ single crystals were synthesized by the optical floating zone method, and the photoluminescence and scintillation properties were evaluated. Photoluminescence and scintillation with a broad band around 420 nm are observed in all the samples. The decay curves are well–approximated by a sum of two exponential functions, which are due to the 5d–4f transition of Ce³⁺ and intrinsic luminescence in the host material. As a result of the pulse height spectra under γ–rays irradiation from ²⁴¹Am, the CaYAl₃O₇ sample shows the highest scintillation light yield of 6500 ph/MeV among the present samples.

Original language	English
Article number	109497
Journal	Optical Materials
Volume	98
DOIs	https://doi.org/10.1016/j.optmat.2019.109497
Publication status	Published - 2019 Dec

Keywords

Afterglow
Cerium
Melilite
Photoluminescence
Scintillator
Single crystal

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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@article{b61a0db14d0c46daa3ecad1fc5ed105e,

title = "Photoluminescence and scintillation properties of Ce–doped Ca(Gd,Y)Al3O7 single crystals",

abstract = "Ce–doped Ca(Gd,Y)Al3O7 single crystals were synthesized by the optical floating zone method, and the photoluminescence and scintillation properties were evaluated. Photoluminescence and scintillation with a broad band around 420 nm are observed in all the samples. The decay curves are well–approximated by a sum of two exponential functions, which are due to the 5d–4f transition of Ce3+ and intrinsic luminescence in the host material. As a result of the pulse height spectra under γ–rays irradiation from 241Am, the CaYAl3O7 sample shows the highest scintillation light yield of 6500 ph/MeV among the present samples.",

keywords = "Afterglow, Cerium, Melilite, Photoluminescence, Scintillator, Single crystal",

author = "Kenta Igashira and Daisuke Nakauchi and Yutaka Fujimoto and Takumi Kato and Noriaki Kawaguchi and Takayuki Yanagida",

note = "Funding Information: This work was supported by Grant–in–Aid for Scientific Research A ( 17H01375 ), Scientific Research B ( 18H03468 ) and JSPS Research Fellow ( 17J09488 ) from JSPS. The Cooperative Research Project of Research Center for Biomedical Engineering , NSG Foundation , Iketani Science and Technology Foundation , Murata Foundation and NAIST Foundation are also acknowledged. Funding Information: This work was supported by Grant?in?Aid for Scientific Research A (17H01375), Scientific Research B (18H03468) and JSPS Research Fellow (17J09488) from JSPS. The Cooperative Research Project of Research Center for Biomedical Engineering, NSG Foundation, Iketani Science and Technology Foundation, Murata Foundation and NAIST Foundation are also acknowledged. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = dec,

doi = "10.1016/j.optmat.2019.109497",

language = "English",

volume = "98",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier",

}

TY - JOUR

T1 - Photoluminescence and scintillation properties of Ce–doped Ca(Gd,Y)Al3O7 single crystals

AU - Igashira, Kenta

AU - Nakauchi, Daisuke

AU - Fujimoto, Yutaka

AU - Kato, Takumi

AU - Kawaguchi, Noriaki

AU - Yanagida, Takayuki

N1 - Funding Information: This work was supported by Grant–in–Aid for Scientific Research A ( 17H01375 ), Scientific Research B ( 18H03468 ) and JSPS Research Fellow ( 17J09488 ) from JSPS. The Cooperative Research Project of Research Center for Biomedical Engineering , NSG Foundation , Iketani Science and Technology Foundation , Murata Foundation and NAIST Foundation are also acknowledged. Funding Information: This work was supported by Grant?in?Aid for Scientific Research A (17H01375), Scientific Research B (18H03468) and JSPS Research Fellow (17J09488) from JSPS. The Cooperative Research Project of Research Center for Biomedical Engineering, NSG Foundation, Iketani Science and Technology Foundation, Murata Foundation and NAIST Foundation are also acknowledged. Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/12

Y1 - 2019/12

N2 - Ce–doped Ca(Gd,Y)Al3O7 single crystals were synthesized by the optical floating zone method, and the photoluminescence and scintillation properties were evaluated. Photoluminescence and scintillation with a broad band around 420 nm are observed in all the samples. The decay curves are well–approximated by a sum of two exponential functions, which are due to the 5d–4f transition of Ce3+ and intrinsic luminescence in the host material. As a result of the pulse height spectra under γ–rays irradiation from 241Am, the CaYAl3O7 sample shows the highest scintillation light yield of 6500 ph/MeV among the present samples.

AB - Ce–doped Ca(Gd,Y)Al3O7 single crystals were synthesized by the optical floating zone method, and the photoluminescence and scintillation properties were evaluated. Photoluminescence and scintillation with a broad band around 420 nm are observed in all the samples. The decay curves are well–approximated by a sum of two exponential functions, which are due to the 5d–4f transition of Ce3+ and intrinsic luminescence in the host material. As a result of the pulse height spectra under γ–rays irradiation from 241Am, the CaYAl3O7 sample shows the highest scintillation light yield of 6500 ph/MeV among the present samples.

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