Photo-and radio-luminescence characterizations in rare-earth-doped sral2O4 crystals

Daisuke Nakauchi; Masanori Koshimizu; Noriaki Kawaguchi; Takayuki Yanagida

Photo-and radio-luminescence characterizations in rare-earth-doped sral₂O₄ crystals

Daisuke Nakauchi, Masanori Koshimizu, Noriaki Kawaguchi, Takayuki Yanagida

ENG - Applied Chemistry

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

1 Citation (Scopus)

Abstract

SrAl₂O₄ bulk crystals doped with all rare-earth (RE) ions except for Sc, Y, La, Pm and Lu were synthesized by the optical floating zone method to systematically investigate the photoluminescence (PL) and radioluminescence (RL) properties for radiation detector applications. The crystal samples show PL and RL signals due to the 5d-4f or 4f-4f transitions of doped RE ions, and each decay curve consists of a sum of exponential functions with the typical decay time constants. Under VUV photon excitation, the Ce-, Pr-, Eu-, Tb-, Dy-and Ho-doped samples exhibit PL predominantly with two broad emission bands around 320 and 600 nm, which are possibly due to self-trapped excitons (STEs) perturbed by RE ions.

Original language	English
Pages (from-to)	307-313
Number of pages	7
Journal	Journal of Ceramic Processing Research
Volume	20
Issue number	4
Publication status	Published - 2019 Aug

Keywords

Crystal growth
Dosimetry
Photoluminescence
Radioluminescence
Scintillator
VUV

ASJC Scopus subject areas

Ceramics and Composites

Cite this

@article{d3540277cc55494d832870edd66db74a,

title = "Photo-and radio-luminescence characterizations in rare-earth-doped sral2O4 crystals",

abstract = "SrAl2O4 bulk crystals doped with all rare-earth (RE) ions except for Sc, Y, La, Pm and Lu were synthesized by the optical floating zone method to systematically investigate the photoluminescence (PL) and radioluminescence (RL) properties for radiation detector applications. The crystal samples show PL and RL signals due to the 5d-4f or 4f-4f transitions of doped RE ions, and each decay curve consists of a sum of exponential functions with the typical decay time constants. Under VUV photon excitation, the Ce-, Pr-, Eu-, Tb-, Dy-and Ho-doped samples exhibit PL predominantly with two broad emission bands around 320 and 600 nm, which are possibly due to self-trapped excitons (STEs) perturbed by RE ions.",

keywords = "Crystal growth, Dosimetry, Photoluminescence, Radioluminescence, Scintillator, VUV",

author = "Daisuke Nakauchi and Masanori Koshimizu 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 as well as A-STEP from JST. The Cooperative Research Project of Research Institute of Electronics, Shizuoka University, Terumo Foundation for Life Sciences and Arts, Izumi Science and Technology Foundation, SEI Group CSR Foundation, The Iwatani Naoji Foundation and NAIST foundation are also acknowledged. Publisher Copyright: {\textcopyright} 2019, Hanyang University. All rights reserved.",

year = "2019",

month = aug,

language = "English",

volume = "20",

pages = "307--313",

journal = "Journal of Ceramic Processing Research",

issn = "1229-9162",

publisher = "Hanyang University",

number = "4",

}

TY - JOUR

T1 - Photo-and radio-luminescence characterizations in rare-earth-doped sral2O4 crystals

AU - Nakauchi, Daisuke

AU - Koshimizu, Masanori

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 as well as A-STEP from JST. The Cooperative Research Project of Research Institute of Electronics, Shizuoka University, Terumo Foundation for Life Sciences and Arts, Izumi Science and Technology Foundation, SEI Group CSR Foundation, The Iwatani Naoji Foundation and NAIST foundation are also acknowledged. Publisher Copyright: © 2019, Hanyang University. All rights reserved.

PY - 2019/8

Y1 - 2019/8

N2 - SrAl2O4 bulk crystals doped with all rare-earth (RE) ions except for Sc, Y, La, Pm and Lu were synthesized by the optical floating zone method to systematically investigate the photoluminescence (PL) and radioluminescence (RL) properties for radiation detector applications. The crystal samples show PL and RL signals due to the 5d-4f or 4f-4f transitions of doped RE ions, and each decay curve consists of a sum of exponential functions with the typical decay time constants. Under VUV photon excitation, the Ce-, Pr-, Eu-, Tb-, Dy-and Ho-doped samples exhibit PL predominantly with two broad emission bands around 320 and 600 nm, which are possibly due to self-trapped excitons (STEs) perturbed by RE ions.

AB - SrAl2O4 bulk crystals doped with all rare-earth (RE) ions except for Sc, Y, La, Pm and Lu were synthesized by the optical floating zone method to systematically investigate the photoluminescence (PL) and radioluminescence (RL) properties for radiation detector applications. The crystal samples show PL and RL signals due to the 5d-4f or 4f-4f transitions of doped RE ions, and each decay curve consists of a sum of exponential functions with the typical decay time constants. Under VUV photon excitation, the Ce-, Pr-, Eu-, Tb-, Dy-and Ho-doped samples exhibit PL predominantly with two broad emission bands around 320 and 600 nm, which are possibly due to self-trapped excitons (STEs) perturbed by RE ions.

KW - Crystal growth

KW - Dosimetry

KW - Photoluminescence

KW - Radioluminescence

KW - Scintillator

KW - VUV

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M3 - Article

AN - SCOPUS:85073384490

VL - 20

SP - 307

EP - 313

JO - Journal of Ceramic Processing Research

JF - Journal of Ceramic Processing Research

SN - 1229-9162

IS - 4

ER -

Photo-and radio-luminescence characterizations in rare-earth-doped sral₂O₄ crystals

Abstract

Keywords

ASJC Scopus subject areas

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