Mechanism of Silanization and Its Influence on Temperature Sensitivity of Up-Conversion Luminescence of NaYF4:Yb/Ho Nanoparticles

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-17 DOI:10.1134/S1062873824708900

R. M. Gataullina, A. V. Leontyev, L. A. Nurtdinova, A. G. Shmelev, D. K. Zharkov, A. N. Solodov, A. T. Gubaidullin, A. F. Saifina, A. A. Khannanov, V. G. Nikiforov

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Abstract

We studied the morphological, structural, and optical studies of hydrophobic up-conversion NaYF₄:Yb/Ho nanoparticles synthesized by the thermal decomposition method. To impart hydrophilic properties, the NaYF₄:Yb/Ho nanoparticles were silanized using the following nonionic surfactants: Triton X-114, Tween 85, and PEG monooleate. As a result, a silicate shell formed on the surface of the nanoparticles, providing hydrophilic properties and stable colloidal solutions in water while maintaining their luminescent characteristics. The use of the most effective surfactant, Triton X-114, for silanization allowed for obtaining a narrow size distribution of NaYF₄:Yb/Ho@SiO₂ nanoparticles. The study of the temperature dependencies of luminescence spectra indicates the high potential of NaYF₄:Yb/Ho and NaYF₄:Yb/Ho@SiO₂ nanoparticles for use as luminescent temperature probes.

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硅烷化机理及其对NaYF4:Yb/Ho纳米颗粒上转换发光温度敏感性的影响

研究了热分解法制备的疏水上转化纳米NaYF4:Yb/Ho的形貌、结构和光学性质。为了获得亲水性，使用以下非离子表面活性剂：Triton X-114、Tween 85和PEG单油酸酯对NaYF4:Yb/Ho纳米颗粒进行硅化处理。因此，在纳米颗粒表面形成了一个硅酸盐壳，在保持其发光特性的同时，提供了亲水性和稳定的胶体溶液。使用最有效的表面活性剂Triton X-114进行硅烷化，可以获得窄尺寸分布的NaYF4:Yb/Ho@SiO2纳米颗粒。发光光谱的温度依赖性研究表明，NaYF4:Yb/Ho和NaYF4:Yb/Ho@SiO2纳米颗粒作为发光温度探针具有很高的潜力。

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.