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0Novel metal and hybrid nanomaterials for electronics and photonics applications synthesized by template synthesis in the pores of polymer track membranes
Yu.A. Filippova1,2*, N.P. Kovalets1, V.N. Gumerova1, D.V. Panov1, A.V. Naumov1'3
1-Moscow Pedagogical State University (MPGU), Moscow, Russia 2- M.V Lomonosov Moscow State University, Moscow, Russia 3- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Troitsk Branch, Moscow, Troitsk, Russia
* [email protected]; www.mpgu.su
The Laboratory of Physics of Advanced Materials and Nanostructures and Educational and Scientific Center for Functional and Nanomaterials named after G.M. Bartenev at the Moscow Pedagogical State University (MPGU) are continuing work on the synthesis and technical application of nano-materials.
Promising method for obtaining rod-shaped nano-structures with variations in shape and size is template synthesis in etched polymer track membranes (TM). This field of science and technology have been initiated and developed by Prof. P.Yu. Apel at the Joint Institute for Nuclear Research (Dubna) and quickly growing last years [1]. The essence of the method for synthesis of secondary structures in the TM is to fill the pores in a matrix with a specific material. The simplicity of this technique and the possibility of electrochemical deposition allow for setting the desired parameters of structures, such as diameter, density, type of metal, shape, and length. In this work, TM acts as the matrix, and microscopic particles formed during this process - nanowires (NPs) - are formed in geometric shape by a precise replica of the corresponding pore, with varying lengths and radii. TM with already set parameters obtained at the Joint Institute for Nuclear Research (Dubna), using PET films with thickness up to dozen of ^m and pore diameters from a few tens to a few hundreds of nm as initial matrices, are used.
Here we overview different types of nanomaterials synthesized in TM and their applications. On the basis of these nanowires, viscoelastic properties of magnetic liquids based on silicone oil or ferrogels based on hydroxypropylguar are synthesized and studied [2,3]. Grown Ag nanowires in polymers are used to prepare flexible film heaters with an active area that can be scaled, and a temperature range of 80-100°C [4]. Such composites (TM / metal) are used to study the mechanical properties under tension, including as model materials [5]. Deformation and destruction of composites depend significantly on the size and distribution of pores in the initial TM material. SERS-substrates obtained from TM (an array of nanowires and a system of microcracks on the metalized surface of the TM) are used to detect various substances [6-8]. Single ferromagnetic nanowire can be used in luminescent thermometry for anti-cancer treatment.
The results presented in this lecture have been obtained within the state assignment of the Ministry of Education of The Russian Federation "Physics of nanostructured materials and highly sensitive sensorics: synthesis, fundamental research and applications in photonics, life sciences, quantum and nanotechnology" (theme No. - 124031100005-5).
[1] P.Yu. Apel, Track etching technique in membrane technology, Radiation Measurements 34, 559-566 (2001).
[2] Y.A. Filippova, et al, Study of the geometry and physical characteristics of FeNi nanowires used in ferrofluids, Bull. Russ. Acad. Sci. Phys. 87, 1813-1818 (2023).
[3] Yu.A. Filippova, et al, FeNi Nanowires as a Promising Filler for Magnetic Sensitive Gel, Bull. Russ. Acad. Sci. Phys. 87, 1483-1487 (2023).
[4] E.P. Kozhina, et al, A thin-film polymer heating element with a continuous silver nanowires network embedded inside, Nanotechnology 35, 035601 (2024).
[5] V.N. Gumirova, et al, The Influence of Mechanical Stress Micro Fields around Pores on the Strength of Elongated Etched Membrane, Membranes 12, 1168 (2022).
[6] E. Kozhina, et al, Ag-Nanowire Bundles with Gap Hot Spots Synthesized in Track-Etched Membranes as Effective SERS-Substrates, Applied Sciences 11, 1375 (2021).
[7] N.P. Kovalets, et al, Towards single molecule surface-enhanced Raman scattering with novel type of metasurfaces synthesized by crack-stratching of metallized track membranes, J. Chem. Phys. 156, 034902 (2022).
[8] N.P. Kovalets, et al, Scratching of metallized polymer films by Vickers indenter as a method for controlled production of SERS-active metasurfaces, Journal of Luminescence 275, 120803 (2024).
