Luminescence and scintillation mechanism in Ce3+ and Pr3+ doped (Lu,Y,Gd)3(Ga,Al)5O12 single crystal scintillators

M. Nikl; K. Kamada; S. Kurosawa; Y. Yokota; A. Yoshikawa; Jan Pejchal; V. Babin

doi:10.1002/pssc.201200499

Luminescence and scintillation mechanism in Ce³⁺ and Pr³⁺ doped (Lu,Y,Gd)₃(Ga,Al)₅O₁₂ single crystal scintillators

M. Nikl, K. Kamada, S. Kurosawa, Y. Yokota, A. Yoshikawa, Jan Pejchal, V. Babin

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

40 Citations (Scopus)

Abstract

Luminescence processes occurring in the 5d¹ excited state of Ce³⁺ and Pr³⁺ centers in the (Gd,RE)₃(Ga,Al)₅O₁₂, RE=Lu,Y, multicomponent garnet host were studied by purely optical contactless methods. Combination of measurements of the prompt nanosecond decay and slow delayed radiative recombination decay allows to resolve the presence of thermal quenching and thermally induced ionization processes acting upon the 5d¹ excited state. Additional energy transfer process depleting the 5d¹ state of Pr³⁺ center was found and is due to the resonance of 5d¹-³H₄ emission transition of Pr³⁺ and ⁸S-⁶P_x absorption transition of Gd³⁺ which might be responsible for noticeably lower light yield in Pr-doped multicomponent garnets.

Original language	English
Pages (from-to)	172-175
Number of pages	4
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	10
Issue number	2
DOIs	https://doi.org/10.1002/pssc.201200499
Publication status	Published - 2013 Feb 1

Keywords

Ce3+
Luminescence
Multicomponent garnet
Pr3+
Scintillator

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1002/pssc.201200499

Cite this

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title = "Luminescence and scintillation mechanism in Ce3+ and Pr3+ doped (Lu,Y,Gd)3(Ga,Al)5O12 single crystal scintillators",

abstract = "Luminescence processes occurring in the 5d1 excited state of Ce3+ and Pr3+ centers in the (Gd,RE)3(Ga,Al)5O12, RE=Lu,Y, multicomponent garnet host were studied by purely optical contactless methods. Combination of measurements of the prompt nanosecond decay and slow delayed radiative recombination decay allows to resolve the presence of thermal quenching and thermally induced ionization processes acting upon the 5d1 excited state. Additional energy transfer process depleting the 5d1 state of Pr3+ center was found and is due to the resonance of 5d1-3H4 emission transition of Pr3+ and 8S-6Px absorption transition of Gd3+ which might be responsible for noticeably lower light yield in Pr-doped multicomponent garnets.",

keywords = "Ce3+, Luminescence, Multicomponent garnet, Pr3+, Scintillator",

author = "M. Nikl and K. Kamada and S. Kurosawa and Y. Yokota and A. Yoshikawa and Jan Pejchal and V. Babin",

year = "2013",

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doi = "10.1002/pssc.201200499",

language = "English",

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T1 - Luminescence and scintillation mechanism in Ce3+ and Pr3+ doped (Lu,Y,Gd)3(Ga,Al)5O12 single crystal scintillators

AU - Nikl, M.

AU - Kamada, K.

AU - Kurosawa, S.

AU - Yokota, Y.

AU - Yoshikawa, A.

AU - Pejchal, Jan

AU - Babin, V.

PY - 2013/2/1

Y1 - 2013/2/1

N2 - Luminescence processes occurring in the 5d1 excited state of Ce3+ and Pr3+ centers in the (Gd,RE)3(Ga,Al)5O12, RE=Lu,Y, multicomponent garnet host were studied by purely optical contactless methods. Combination of measurements of the prompt nanosecond decay and slow delayed radiative recombination decay allows to resolve the presence of thermal quenching and thermally induced ionization processes acting upon the 5d1 excited state. Additional energy transfer process depleting the 5d1 state of Pr3+ center was found and is due to the resonance of 5d1-3H4 emission transition of Pr3+ and 8S-6Px absorption transition of Gd3+ which might be responsible for noticeably lower light yield in Pr-doped multicomponent garnets.

AB - Luminescence processes occurring in the 5d1 excited state of Ce3+ and Pr3+ centers in the (Gd,RE)3(Ga,Al)5O12, RE=Lu,Y, multicomponent garnet host were studied by purely optical contactless methods. Combination of measurements of the prompt nanosecond decay and slow delayed radiative recombination decay allows to resolve the presence of thermal quenching and thermally induced ionization processes acting upon the 5d1 excited state. Additional energy transfer process depleting the 5d1 state of Pr3+ center was found and is due to the resonance of 5d1-3H4 emission transition of Pr3+ and 8S-6Px absorption transition of Gd3+ which might be responsible for noticeably lower light yield in Pr-doped multicomponent garnets.

KW - Ce3+

KW - Luminescence

KW - Multicomponent garnet

KW - Pr3+

KW - Scintillator

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