Effect of Dy3+ concentration on the luminescence properties of Dy3+/Gd3+ co-doped in barium sodium borate glass scintillators

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-09-01 DOI:10.1016/j.radphyschem.2025.113282

N. Luewarasirikul , S. Sarachai , N. Intachai , S. Kothan , M. Djamal , J. Kaewkhao

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Abstract

A series of Dy³⁺/Gd³⁺ co-doped Ba–Na–N glasses were synthesized via the melt-quenching method and investigated for their photoluminescence (PL) and radioluminescence (RL) properties. Under 387 nm excitation (Dy³⁺ ions), the sample containing 1.0 mol% Dy₂O₃ exhibited the strongest PL intensity, achieved a photoluminescence quantum yield (PLQY) of 7.59 %. Upon 275 nm excitation (Gd³⁺ ions), efficient energy transfer from Gd³⁺ to Dy³⁺ was observed, with the strongest PL intensity obtained in the 0.5 mol% Dy₂O₃ sample. Chromaticity coordinates of all samples were located near (x = 0.37, y = 0.42), confirming their white-light emission capability. For RL measurements under X-ray excitation, the 0.50 mol% Dy₂O₃ glass sample reached an integral scintillation efficiency of 14.84 % relative to a commercial BGO standard. These results highlight the potential of the developed glasses in this work for use in white light-emitting devices and cost-effective X-ray scintillators.

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Dy3+浓度对硼酸钡钠玻璃闪烁体中Dy3+/Gd3+共掺杂发光性能的影响

采用熔融猝灭法合成了一系列Dy3+/Gd3+共掺杂Ba-Na-N玻璃，并对其光致发光（PL）和辐射致发光（RL）性能进行了研究。在387 nm激发下（Dy3+离子），含有1.0 mol% Dy2O3的样品表现出最强的PL强度，实现了7.59%的光致发光量子产率（PLQY）。在275 nm激发（Gd3+离子）时，观察到从Gd3+到Dy3+的有效能量转移，在0.5 mol% Dy2O3样品中获得了最强的PL强度。所有样品的色度坐标位于（x = 0.37, y = 0.42）附近，证实了它们的白光发射能力。对于x射线激发下的RL测量，相对于商业BGO标准，0.50 mol% Dy2O3玻璃样品的积分闪烁效率达到14.84%。这些结果突出了在这项工作中开发的玻璃用于白光发射装置和具有成本效益的x射线闪烁体的潜力。

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.