Introduction. Nanostructured porous anodic aluminum oxide is used as a matrix, where it is often necessary to introduce impurities of various metals into its structure. In this case, an effective solution is the electrochemical deposition of metals into the pores of anodic aluminum oxide. However, metals can be deposited on the cathode from aqueous solutions of salts in which the electrode potential is electronegative and less than the potential for hydrogen evolution in solutions. Materials and methods. The anodizing process takes place in two stages: preliminary anodizing and anodizing itself. Before preliminary anodization, experimental samples were coated with a chemically resistant varnish for separation between the electrolyte and air. Then the samples prepared in this way were dried for 4–6 hours, after which the second stage of anodization was carried out. Results. It has been revealed that substrate inhomogeneities can be reduced by slowing down the oxide growth process or by using pore blanks. Using similar methods, a highly ordered structure can be achieved. A more dense arrangement of pores can be achieved through the use of strong acids, forming a barrier layer of thinner thickness with more penetration paths. It is worth noting that when using such acids, the number of inhomogeneities becomes not such an important parameter. Discussion. Films were obtained with greater chemical strength and a thickness of 84-100 microns, a pore diameter of 0.15-0.3 microns. By carrying out additional etching, the pore diameter was increased to 0.6 µm. Etching of PHA can be carried out in an alkali solution in an anhydrous solution of ethyl alcohol. Also, pores can be dissolved by reanodizing in a solution of phosphoric acid. The barrier layer grows to 100 A, removal is carried out with dilute hydrofluoric acid. The resulting PHAs have a fairly porous, homogeneous structure with an average effective pore size of 0.45-0.65 μm. Conclusion. Conditions have been developed for the joint deposition of two metals from aqueous solutions at close values of their electrode potentials, such as iron and cobalt. The conditions for the deposition of copper from copper sulfate into the pores of porous aluminum oxide have been established at 25 – 70 t/l of sulfate and 7÷12% sulfuric acid. Resume. The research results can be useful in obtaining films of porous anodic aluminum oxide, which can be used as substrates for creating solar-electric energy converters based on materials with a perovskite structure. This is especially true for the Republic of North Ossetia-Alania and for the mountainous territories of the North Caucasus. The use of solar energy converters will make it possible to more efficiently electrify populated areas in mountainous areas.

The paper discusses the methods for the formation of solar-to-electrical converters on perovskites. The possibility of using inorganic semiconductors as a transport layer is shown. The solar energy converter is formed on the basis of the nanostructured porous anodic aluminum oxide.

Photosensitive polycrystalline CuIn0.95Ga0.05Se2 thin films have been formed on glass, aluminum, and nanoporous Al/Al2O3 substrates by means of two-step selenization in a gas (nitrogen) flow carrying a reaction component (selenium). The structural properties and the Raman scattering spectral dependences have been investigated. The dependence of the main lattice parameters and intensities of the Raman scattering lines on the substrate material is demonstrated.

A technology of two stage selenezation method in the carrier gas (nitrogen) stream of the reaction component (selenium) has been suggested for the CuIn0.95Ga0.05Se2 thin film growing. Morphology and structure of the CuIn0.95Ga0.05Se2 film have been studied by SEM and XRD methods. Phase compound of film material for the CuIn0.95Ga0.05Se2 semiconductor solution has been studied by X-ray photoelectron spectroscopy method.

The results of an investigation into the production of porous aluminum oxide, which is a typical self-organized material, by anodic oxidation of aluminum in acid solutions are presented. The functional dependences of the impact of the formation conditions on the structural parameters of porous anodic aluminum oxide, including pore diameter and oxide-cell size, are studied.

Possible reasons for decomposition of the emission layer of working electroluminescence structures that cause a decrease in the working time are considered. Results of a multifactor experiment aimed at a search for the optimal composition of suspensions of the emitting and dielectric layers of the structure are presented. Compositions of dielectric components are proposed. Results of life tests are presented.