Ce concentration dependence on scintillation properties of SrHfO3 single crystals

被引：7

作者：

Fukushima, Hiroyuki ^{[1
]}

Nakauchi, Daisuke ^{[1
]}

Okada, Go ^{[2
]}

Kato, Takumi ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, Ikoma, Nara 6300192, Japan

[2] Kanazawa Inst Technol, Cocreat Res Ctr Ind Sci & Technol, 3-1 Yatsukaho, Haku San, Ishikawa 9240838, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 934卷

基金：

日本学术振兴会; 日本科学技术振兴机构;

关键词：

Single crystal; Photoluminescence; Scintillation; SrHfO3; PHOTOLUMINESCENCE; LUMINESCENCE; GROWTH;

D O I：

10.1016/j.jallcom.2022.167929

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：

Transparent and yellowish Ce-doped SrHfO3 (Ce:SHO) single crystals were grown by the xenon lamp equipped floating zone method. The synthesized crystals were in the single phase of SHO crystal structure, and no impurity phases such as HfO2 were evident by the X-ray diffraction analysis. The Ce:SHO shows blue luminescence peaking at 410 nm in both the PL and scintillation spectra, and the decay time constant was approximately 14 ns. The PL QY increases with the Ce concentration, which was confirmed up to 5%. The afterglow level is the lowest when the Ce concentration is 3%. The full energy peak can be demonstrated with all the Ce:SHO single crystals prepared in this study under 241Am alpha-ray irradiation, and the es-timated light yield is 396 photons/MeV for the 3% Ce:SHO, which is the highest among the samples studied.(c) 2022 Elsevier B.V. All rights reserved.

引用

页数：5

共 46 条

[41] Effect of microstructure on the radioluminescence and transparency of Ce-doped strontium hafnate ceramics [J].