Photoluminescence and scintillation properties of Yb2+-doped SrCl2-xBrx(x = 0, 1.6, 2.0) crystals

Kohei Mizoi; Miki Arai; Yutaka Fujimoto; Daisuke Nakauchi; Masanori Koshimizu; Takayuki Yanagida; Keisuke Asai

doi:10.35848/1882-0786/abc081

Photoluminescence and scintillation properties of Yb²⁺-doped SrCl_2-xBr_x(x = 0, 1.6, 2.0) crystals

Kohei Mizoi, Miki Arai, Yutaka Fujimoto, Daisuke Nakauchi, Masanori Koshimizu, Takayuki Yanagida, Keisuke Asai

ENG - Applied Chemistry

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

6 Citations (Scopus)

Abstract

Photoluminescence (PL) and scintillation properties are reported for SrCl2-x Br x :Yb2+ (x = 0, 1.6, 2.0) crystals grown by a self-seeding solidification method. Two emission peaks centered at approximately (380-390) nm and (410-420) nm were observed in PL and scintillation spectra and are attributed to spin-allowed and spin-forbidden Yb2+ 5d-4f transitions, respectively. SrCl0.4Br1.6:Yb2+ showed the highest light yield of 71 000 photons MeV-1 with a scintillation decay time constant of 490 ns. The developed SrCl0.4Br1.6:Yb2+ materials have the potential to replace conventional SrI2:Eu2+ scintillators used in pulse counting mode detectors owing to their high light yields and low deliquescence.

Original language	English
Article number	112008
Journal	Applied Physics Express
Volume	13
Issue number	11
DOIs	https://doi.org/10.35848/1882-0786/abc081
Publication status	Published - 2020 Nov 1

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Photoluminescence and scintillation properties of Yb2+-doped SrCl2-xBrx(x = 0, 1.6, 2.0) crystals",

abstract = "Photoluminescence (PL) and scintillation properties are reported for SrCl2-x Br x :Yb2+ (x = 0, 1.6, 2.0) crystals grown by a self-seeding solidification method. Two emission peaks centered at approximately (380-390) nm and (410-420) nm were observed in PL and scintillation spectra and are attributed to spin-allowed and spin-forbidden Yb2+ 5d-4f transitions, respectively. SrCl0.4Br1.6:Yb2+ showed the highest light yield of 71 000 photons MeV-1 with a scintillation decay time constant of 490 ns. The developed SrCl0.4Br1.6:Yb2+ materials have the potential to replace conventional SrI2:Eu2+ scintillators used in pulse counting mode detectors owing to their high light yields and low deliquescence.",

author = "Kohei Mizoi and Miki Arai and Yutaka Fujimoto and Daisuke Nakauchi and Masanori Koshimizu and Takayuki Yanagida and Keisuke Asai",

year = "2020",

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doi = "10.35848/1882-0786/abc081",

language = "English",

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TY - JOUR

T1 - Photoluminescence and scintillation properties of Yb2+-doped SrCl2-xBrx(x = 0, 1.6, 2.0) crystals

AU - Mizoi, Kohei

AU - Arai, Miki

AU - Fujimoto, Yutaka

AU - Nakauchi, Daisuke

AU - Koshimizu, Masanori

AU - Yanagida, Takayuki

AU - Asai, Keisuke

PY - 2020/11/1

Y1 - 2020/11/1

N2 - Photoluminescence (PL) and scintillation properties are reported for SrCl2-x Br x :Yb2+ (x = 0, 1.6, 2.0) crystals grown by a self-seeding solidification method. Two emission peaks centered at approximately (380-390) nm and (410-420) nm were observed in PL and scintillation spectra and are attributed to spin-allowed and spin-forbidden Yb2+ 5d-4f transitions, respectively. SrCl0.4Br1.6:Yb2+ showed the highest light yield of 71 000 photons MeV-1 with a scintillation decay time constant of 490 ns. The developed SrCl0.4Br1.6:Yb2+ materials have the potential to replace conventional SrI2:Eu2+ scintillators used in pulse counting mode detectors owing to their high light yields and low deliquescence.

AB - Photoluminescence (PL) and scintillation properties are reported for SrCl2-x Br x :Yb2+ (x = 0, 1.6, 2.0) crystals grown by a self-seeding solidification method. Two emission peaks centered at approximately (380-390) nm and (410-420) nm were observed in PL and scintillation spectra and are attributed to spin-allowed and spin-forbidden Yb2+ 5d-4f transitions, respectively. SrCl0.4Br1.6:Yb2+ showed the highest light yield of 71 000 photons MeV-1 with a scintillation decay time constant of 490 ns. The developed SrCl0.4Br1.6:Yb2+ materials have the potential to replace conventional SrI2:Eu2+ scintillators used in pulse counting mode detectors owing to their high light yields and low deliquescence.

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Photoluminescence and scintillation properties of Yb²⁺-doped SrCl_2-xBr_x(x = 0, 1.6, 2.0) crystals

Abstract

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