Eu3+-doped gadolinium borate glass system development for optical and scintillation applications

被引：4

作者：

Luewarasirikul N. ^{[1
]}

Sarachai S. ^{[2
,3
]}

Kothan S. ^{[4
]}

Kim H.J. ^{[5
]}

Kaewkhao J. ^{[2
,3
]}

机构：

[1] Applied Physics Program, Faculty of Sciences and Technology, Suan Sunandha Rajabhat University, Bangkok

[2] Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom

[3] Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom

[4] Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai

[5] Department of Physics, Kyungpook National University, Deagu

来源：

Optik | 2023年 / 292卷

关键词：

Borate glass; Europium; Gadolinium; Photoluminescence; Radioluminescence;

D O I：

10.1016/j.ijleo.2023.171385

中图分类号：

学科分类号：

摘要：

This paper describes the development and characterization of the Eu3+-doped Ba-Na-B glass system with the varying of Gd2O3 concentrations from 0 to 10 mol%. The photoluminescence emission spectra, excited with 393 nm at Eu3+ ions, show strong luminescence with a peak emission wavelength of 613 nm (5D0→7F2). The highest emission intensity is belonged to the glass sample with 2.5 mol% of Gd2O3. The phonon energy of the host glasses, evaluated from the phonon sideband analysis, is 1017 cm−1. The emission spectra, excited with 275 nm at Gd3+ ions, show the emission band according to the Gd3+→Gd3+ transition at 311 nm (4P7/2→8S7/2) and show the Gd3+→Eu3+ energy transfer, resulting in the emission of light at the characteristic wavelengths of the Eu3+. The highest photoluminescence emission intensity is belonged to the glass sample with 2.5 mol% of Gd2O3, due to its highest energy transfer efficiency at 59.10%. The emitting light of all the glass samples for both excited with 393 nm (Eu3+) and 275 nm (Gd3+) can be all represented by the x,y color coordinates at (0.65, 0.35) in reddish-orange region. The radioluminescence emission spectra, excited by 50 kV, 30 mA X-ray generator, show the emission bands with Eu3+ characteristics. The highest radioluminescence emission intensity is belonged to the glass sample with 7.5 mol% of Gd2O3 with the highest scintillation efficiencies at 20.61% compared to the BGO sample. © 2023 Elsevier GmbH

引用

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