Photoluminescence, scintillation and thermoluminescence properties of Ce-doped SrLaAl3O7 crystals synthesized by the optical floating zone method

被引：6

作者：

Igashira, Kenta ^{[1
]}

Nakauchi, Daisuke ^{[1
]}

Kato, Takumi ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, 8916-5 Takayama, Nara 6300192, Japan

来源：

OPTICAL MATERIALS | 2021年 / 112卷

关键词：

Scintillator; Melilite crystal; Cerium; Photoluminescence; Thermoluminescence; LONG-LASTING PHOSPHORESCENCE; LUMINESCENCE; CA2AL2SIO7; TB3+;

D O I：

10.1016/j.optmat.2020.110782

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoluminescence, scintillation and thermoluminescence properties of undoped and Ce-doped SrLaAl3O7 crystals grown using the optical Floating Zone technique were examined. An intense broad emission peak at 400 nm are observed from photoluminescence excitation-emission maps and scintillation spectra of the Ce-doped SrLaAl3O7 crystals, with the origin is ascribed to the 5d-4f transitions of Ce3+. The primary decay of the Cedoped and undoped SrLaAl3O7 crystals are attributable to the Ce3+ ions and intrinsic luminescence, respectively. The 3.0% Ce-doped SrLaAl3O7 crystal shows the highest light yield of 760 ph/5.5 MeV-alpha among the investigated samples based on pulse height analysis under alpha-rays excitation from Am-241.

引用

页数：5

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