Optical and Electron Microscopy of Clusters of Nd3+:LaF3 Nanoparticles Synthesized by the HTMW Method

IF 1.1 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Physics of Wave Phenomena Pub Date : 2023-07-01 DOI:10.3103/S1541308X23030093

G. O. Silaev, V. N. Krasheninnikov, A. T. Shaidulin, O. V. Uvarov, E. O. Orlovskaya, Yu. V. Orlovskii, Yu. G. Vainer

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Abstract

A comparative study of the sizes and spatial structure of single dielectric colloidal nanoparticles of lanthanum fluoride, doped with rare-earth neodymium ions (Nd³⁺:LaF₃), and their conglomerates in an aqueous solution has been performed. Nanoparticles were synthesized by aqueous co-precipitation method with subsequent hydrothermal microwave (HTMW) treatment. Experiments were performed using three methods: transmission electron microscopy (TEM), nanoparticle tracking analysis (NTA), and dynamic light scattering (DLS). An analysis of the results has shown that a stable colloidal solution of nanoparticles is formed during synthesis. The solution consists of single lanthanum fluoride nanoparticles, having a narrow (10–30 nm) size distribution, and nanoclusters formed on their basis. It is also shown that the spatial structure of nanoclusters cannot be described in terms of the fractal model, which is widely used to describe clusters formed in colloidal solutions of nanoparticles of various nature.

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HTMW法合成Nd3+:LaF3纳米颗粒团簇的光学和电子显微镜研究

对掺杂稀土钕离子(Nd3+:LaF3)的氟化镧单介质胶体纳米粒子的尺寸和空间结构及其在水溶液中的聚集体进行了比较研究。采用水热微波(HTMW)处理后的水共沉淀法合成纳米颗粒。实验采用透射电子显微镜(TEM)、纳米颗粒跟踪分析(NTA)和动态光散射(DLS)三种方法进行。结果分析表明，合成过程中形成了稳定的纳米颗粒胶体溶液。该溶液由单个氟化镧纳米颗粒组成，具有狭窄的(10-30纳米)尺寸分布，并在其基础上形成纳米团簇。研究还表明，纳米团簇的空间结构不能用分形模型来描述，而分形模型被广泛用于描述各种性质的纳米颗粒在胶体溶液中形成的团簇。

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来源期刊

Physics of Wave Phenomena PHYSICS, MULTIDISCIPLINARY-

CiteScore

2.50

自引率

21.40%

发文量

审稿时长

>12 weeks

期刊介绍： Physics of Wave Phenomena publishes original contributions in general and nonlinear wave theory, original experimental results in optics, acoustics and radiophysics. The fields of physics represented in this journal include nonlinear optics, acoustics, and radiophysics; nonlinear effects of any nature including nonlinear dynamics and chaos; phase transitions including light- and sound-induced; laser physics; optical and other spectroscopies; new instruments, methods, and measurements of wave and oscillatory processes; remote sensing of waves in natural media; wave interactions in biophysics, econophysics and other cross-disciplinary areas.