ИСТИНА

Novel materials science developing the methods of obtaining and studying of new materials for different applications based on nanostructured coatings. For instance, controlled deposition onto the surface of porous media can allow obtaining a new class of 2D materials possessing unique optical, magnetic, catalytic, sensory, gas and liquids filtration properties. It should be noted that a large contribution in these properties has a developed surface due to the formation of films with different surface morphology. It is also strongly affected by the structural-phase state, local atomic and electronic structure [1]. Synchrotron facilities give more precise and reliable information about structure and electronic properties of materials. For instance X-Ray Absorption Fine Structure (XAFS) technique is a powerful method of obtaining of structural information, X-Ray Absorption Near Edge Structure (XANES) as well as X-Ray Photoelectron Spectroscopy (XPS) allows to investigate the charge states of chemical elements and chemical composition. For the visualization of surface morphology the methods of Scanning Electron Microscopy (SEM) and different methods of Atomic Force Microscopy (AFM) are widely used. In this work we propose templating approaches based on the formation of semiconductors (Ge, ZnS, ZnSe, GaAs) and 3d metals (Fe, Co, Ni) nanocoatings on the surface the porous alumina films with highly ordered and controlled diameter of holes. Porous alumina templates were obtained by anodization process of aluminum foil. The aim was to identify the influence surface morphology on chemical and local atomic structure of coatings by the methods of XAFS, XPS and SEM investigations of semiconductors and 3d metals nanocoatings to form the basis of their functional properties. This work is supported by Russian Federation Assignment (project № 121030100002-0). XAFS investigations were done at the shared research center SSTRC on the basis of the Novosibirsk FEL/VEPP-4-VEPP-2000 complex at BINP SB RAS. XPS and SEM investigations were carried out using facilities of shared research center “Surface and novel materials” UdmFRC UB RAS. The study was also supported by the Ministry of Science and Higher Education of Russia under Agreement № 075-15-2021-1351 in part of developing of XPS methodology. 1. R. Valeev, A. Beltiukov, et al. Mater. Res. Express 3, 015902 (2016). doi:10.1088/2053- 1591/3/1/015902.