Engineering of Eu dopant segregation in colquiriite-type fluoride single crystal scintillators | Zendy

Yuui Yokota | Zendy; Akihiro Yamaji | Zendy; Shunsuke Kurosawa | Zendy; Yuji Ohashi | Zendy; Kei Kamada | Zendy; Akira Yoshikawa | Zendy

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Engineering of Eu dopant segregation in colquiriite-type fluoride single crystal scintillators

Author(s) -

Yuui Yokota,

Akihiro Yamaji,

Shunsuke Kurosawa,

Yuji Ohashi,

Kei Kamada,

Akira Yoshikawa

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.5006996

Subject(s) - dopant , materials science , scintillator , luminescence , doping , metal , ion , fluoride , single crystal , europium , analytical chemistry (journal) , crystallography , optics , inorganic chemistry , chemistry , optoelectronics , metallurgy , physics , organic chemistry , chromatography , detector

Colquiriite-type Eu-doped LiCaAlF6 and LiSrAlF6 (Eu:LiCAF and Eu:LiSAF) scintillator single crystals were grown using Al metal as a starting material to improve the Eu dopant segregation. All Eu:LiCAF and Eu:LiSAF single crystals using Al metal (Eu,AlM:LiCAF and Eu,AlM:LiSAF) indicated high transparency and effective segregation coefficients (keff) of Eu2%,AlM1%:LiCAF and Eu2%,AlM1%:LiSAF single crystals were significantly improved to the value of 0.40 and 0.99, respectively. EuF3 starting material reacted with Al metal before colquiriite-type phase was generated. As a result, Eu3+ ion in EuF3 was changed to Eu2+ ion which could be incorporated into Ca2+ and Sr2+ sites easily

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