Optical, scintillation and thermoluminescent properties of Eu2O3-doped K2O-La2O3-Ga2O3 glasses

被引：21

作者：

Kawano, Naoki ^{[1
]}

Shinozaki, Kenji ^{[2
]}

Nakauchi, Daisuke ^{[3
]}

Kimura, Hiromi ^{[3
]}

Akatsuka, Masaki ^{[3
]}

Yanagida, Takayuki ^{[3
]}

机构：

[1] Akita Univ, Grad Sch Engn Sci, 1-1Tegata Gakuen Machi, Akita 0108502, Japan

[2] Natl Inst Adv Ind Sci & Technol, 1-8-31 Midorigaoka, Ikeda, Osaka 5638577, Japan

[3] Nara Inst Sci & Technol, Grad Sch Sci & Technol, 8916-5 Takayama Cho, Nara 6300192, Japan

来源：

RADIATION PHYSICS AND CHEMISTRY | 2022年 / 190卷

基金：

日本学术振兴会;

关键词：

Gallium glass; Scintillator; Eu; LUMINESCENCE; EU3+; PHOTOLUMINESCENCE; INTENSITIES; ABSORPTION; EMISSION; SPECTRA; PHYSICS; OXIDE;

D O I：

10.1016/j.radphyschem.2021.109785

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Glasses are promising functional materials as phosphors with an aim to use in radiation measurements because of easy shaping, low fabrication cost and large volume fabrication possibility. In this study, Eu3+-activated gallate glasses having glass compositions of 20K(2)O-11La(2)O(3)-(69-x)Ga2O3-xEu(2)O(3) (x = 0.1-1.0) were synthesized, and their photoluminescence, scintillation and thermoluminescent characteristics were investigated. Clear luminescence peaks at around 574, 591, 614, 653 nm ascribed to the electronic 4f-4f transitions of Eu3+ appeared when the Eu2O3-doped gallate glasses were irradiated by visible light and high energy X-ray. The photoluminescence and scintillation intensities of the 0.5% Eu2O3-doped gallate glass were found to be the highest. Furthermore, a thermoluminescent glow peak appeared at around 90 degrees C in the glow curve. The 0.1% Eu2O3-doped gallate glass showed the highest glow peak intensity unlike photoluminescence and X-ray induced scintillation spectra, suggesting that the Eu2O3-doped gallate glasses showed a complimentary relationship between scintillation and thermoluminescent intensities.

引用

页数：8

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