Scintillation properties of Tb3+ and Sn2+ co-doped phosphate glasses

IF 3.6 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2026-02-01 Epub Date: 2025-12-01 DOI:10.1016/j.jlumin.2025.121690

José A. Jiménez , Luiz G. Jacobsohn

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引用次数: 0

Abstract

Melt-quenched phosphate glasses prepared with fixed Tb³⁺ content alongside SnO added up to 5.0 mol% were characterized by density and optical absorption measurements, and radioluminescence (RL) evaluated under continuous X-ray excitation including at high temperatures. The densities exhibited some variations which were suggested to be influenced by the Sn⁴⁺ concentration leading to more compact phases. The optical absorption spectra were consistent with Tb³⁺ occurring similarly in the glasses. Comparison of the RL spectra at room temperature showed the most intense emission was obtained for the Tb-doped glass prepared with the highest SnO content supporting a key role from Sn²⁺ → Tb³⁺ energy transfer. An enhancement of the peak intensity of 2.5 × was observed, endorsing codoping with Sn²⁺ as an effective strategy to enhance the scintillator behavior of Tb³⁺-containing glasses. The temperature dependence of the scintillation spectra showed minimal variations for the tin-free Tb-doped reference, whereas the tin-containing glasses exhibited distinct intensity enhancements with temperature followed by quenching which depended on the SnO content.

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Tb3+和Sn2+共掺磷酸盐玻璃的闪烁特性

采用固定的Tb3+含量和添加5.0 mol%的SnO制备的熔融淬火磷酸盐玻璃，对其进行了密度和光学吸收测量，并在连续x射线激发下（包括高温下）评估了辐射发光（RL）。结果表明，Sn4+浓度对密度的影响导致了相的致密化。光学吸收光谱与Tb3+相似地出现在玻璃中一致。室温下的RL光谱比较表明，SnO含量最高的掺铥玻璃具有最强烈的发射，支持Sn2+→Tb3+能量转移的关键作用。结果表明，Sn2+共掺杂是提高含Tb3+玻璃闪烁体性能的有效方法。无锡掺铥玻璃的闪烁光谱温度依赖性很小，而含锡玻璃的闪烁光谱强度随温度的升高而增强，随后随SnO含量的增加而猝灭。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.