用于XPDT应用的发光纳米晶CeₓLa1-xF₃：Tb³⁺的制备优化

IF 1.9 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Nuclear Science Pub Date : 2025-04-24 DOI:10.1109/TNS.2025.3564076

X. Lytvynenko;M. Urbanová;J. Bárta;L. Prouzová Procházková;V. Čuba

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引用次数: 0

摘要

本文研究了Ce0.5La0.5F3:Tb3+(5%)纳米粒子的合成、表征和发光性能，该纳米粒子采用溶胶-凝胶法合成，溶剂包括二甘醇（DEG）、乙二醇单甲醚（EGME）和聚乙二醇（PEG）。通过煅烧，研究了温度对纳米颗粒结晶度、粒径和发光效率的影响。研究人员还评估了纳米颗粒悬浮液的稳定性及其在x射线诱导光动力治疗（XPDT）中的应用潜力。x射线衍射（XRD）和透射电子显微镜（TEM）分析证实了纳米颗粒的尺寸和相组成，TEM图像与动态光散射（DLS）结果吻合良好。辐射发光（RL）测量显示Ce3+发射带宽，Tb3+谱线窄，证实了Ce3+和Tb3+离子之间的有效能量转移（ET）。值得注意的是，在EGME中制备并在250°C退火的样品，以及在PEG中合成并在320°C退火的样品，均表现出粒径小、发光增强和悬浮液稳定的最佳组合，使其成为进一步生物功能化的理想选择。

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Optimization of the Fabrication of Luminescent Nanocrystalline CeₓLa1-xF₃:Tb³⁺ for XPDT Applications

This work presents an investigation into the synthesis, characterization, and luminescence properties of Ce0.5La0.5F3:Tb3+(5%) nanoparticles, synthesized using the sol-gel method with various solvents, including diethylene glycol (DEG), ethylene glycol monomethyl ether (EGME), and polyethylene glycol (PEG). The nanoparticles were subjected to calcination to study the effect of temperature on crystallinity, particle size, and luminescence efficiency. The stability of the nanoparticle suspensions and their potential for biofunctionalization were also evaluated for applications in X-ray induced photodynamic therapy (XPDT). X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses confirmed the size and phase composition of the nanoparticles, with TEM images showing good agreement with dynamic light scattering (DLS) results. Radioluminescence (RL) measurements revealed broad Ce3+ emission bands and characteristic narrow Tb3+ lines and confirmed efficient energy transfer (ET) between Ce3+ and Tb3+ ions. Notably, the sample prepared in EGME and annealed at 250 °C, as well as the sample synthesized in PEG and annealed at 320 °C, demonstrated the best combination of small particle size, enhanced luminescence, and stable suspensions, making them ideal for further biofunctionalization.

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来源期刊

IEEE Transactions on Nuclear Science 工程技术-工程：电子与电气

CiteScore

3.70

自引率

27.80%

发文量

314

审稿时长

6.2 months

期刊介绍： The IEEE Transactions on Nuclear Science is a publication of the IEEE Nuclear and Plasma Sciences Society. It is viewed as the primary source of technical information in many of the areas it covers. As judged by JCR impact factor, TNS consistently ranks in the top five journals in the category of Nuclear Science & Technology. It has one of the higher immediacy indices, indicating that the information it publishes is viewed as timely, and has a relatively long citation half-life, indicating that the published information also is viewed as valuable for a number of years. The IEEE Transactions on Nuclear Science is published bimonthly. Its scope includes all aspects of the theory and application of nuclear science and engineering. It focuses on instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.