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Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials, Volume 35, Number 2(2) (2023)
Copyright(C) MYU K.K.
pp. 429-437
S&M3179 Research Paper of Special Issue
https://doi.org/10.18494/SAM4139
Published: February 20, 2023

Photoluminescence and Scintillation Properties of Ce-doped (MgxCa1−x)HfO3 Single Crystals [PDF]

Hiroyuki Fukushima, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida

(Received September 29, 2022; Accepted January 10, 2023)

Keywords: scintillation, photoluminescence, single crystal, floating zone

Ce:(MgxCa1−x)HfO3 (x = 0.5, 2.5, 5, and 10%) single crystals were successfully grown by the floating zone method, and their photoluminescence (PL) and scintillation properties were investigated. A broad luminescence band with a maximum at 430 nm was observed in both the PL and scintillation spectra. The PL quantum yield (QY) improved with the substitution of Mg, and the PL QY of Ce:(MgxCa1−x)HfO3 reached 50%. Fast decay due to the 5d–4f transition of Ce3+ was observed for both the PL and scintillation. Ce:(MgxCa1−x)HfO3 (x = 5%) showed the highest light yield of ~9500 photons/MeV among the synthesized samples, and this value is higher than that of common X- and gamma-ray detection scintillators such as Bi4Ge3O12 and Ce:Gd2SiO5 single crystals.

Corresponding author: Hiroyuki Fukushima


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Cite this article
Hiroyuki Fukushima, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida, Photoluminescence and Scintillation Properties of Ce-doped (MgxCa1−x)HfO3 Single Crystals, Sens. Mater., Vol. 35, No. 2, 2023, p. 429-437.



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