Y1.75Gd1.25Al2.8Ga2.2O12:Ce,Mo （Mo = 0,40,100,200 ppm）单晶薄膜的温度依赖性光致发光动力学、光致发光和辐射发光及闪烁特性

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-04-23 DOI:10.1016/j.optmat.2025.117086

Warut Chewpraditkul , Kriangkrai Wantong , Weerapong Chewpraditkul , Romana Kucerkova , Alena Beitlerova , Dita Strachotova , Martin Nikl , Miroslav Kucera

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引用次数: 0

摘要

研究了等温液相外延技术生长y1.75 gd1.25 al2.8 ga2.2 2o12:Ce,Mo （Mo = 0、40、100、200 ppm）单晶薄膜和微晶粉末（Mo = 0、600 ppm）的光致发光和闪烁性能。根据光致发光动力学，确定了375 K时的猝灭起始温度。在5.5 MeV α粒子激发下，Y1.75Gd1.25Al3Ga2O12:Ce，Mo40的产光率最高，为8900光子/MeV，能量分辨率为4.8%，闪烁衰减时间为115 ns (20.3%) + 967 ns(29.9%) + 2825（49.8%）。

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Temperature-dependent photoluminescence kinetics, photo- and radio-luminescence, and scintillation properties of Y1.75Gd1.25Al2.8Ga2.2O12:Ce,Mo (Mo = 0, 40, 100, 200 ppm) single-crystalline films

Photo- and radio-luminescence and scintillation properties of Y_1.75Gd_1.25Al_2.8Ga_2.2O₁₂:Ce,Mo (Mo = 0, 40, 100, 200 ppm) single-crystalline films grown by the isothermal liquid phase epitaxy technique and microcrystalline powders (Mo = 0 and 600 ppm) were investigated. The onset temperature at 375 K for luminescence quenching was determined from the temperature-dependent photoluminescence kinetics. Under excitation with 5.5 MeV α particles, the Y_1.75Gd_1.25Al₃Ga₂O₁₂:Ce,Mo40 exhibited the highest light yield of 8900 photons/MeV and energy resolution of 4.8 % along with scintillation decay times of 115 ns (20.3 %) + 967 ns (29.9 %) + 2825 (49.8 %).

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.