ИСТИНА

For creating of modern electronics requires the development of new approaches to the production of planar nanomaterial, including universal methods of synthesis and coating. Materials in the In2O3-SnO2 (ITO, Indium Tin Oxide) system are widely used as a transparent electrode due to their high electrical conductivity and transparency in the visible range. This kind of materials are actively used in electronics (liquid crystal screens, LED (Light-Emitting Diode) and OLED (Organic Light Emitting Diode), flexible and touch screens), optics (photoconverters in semiconductor photodetectors, electrochromic glasses, light filters), energetic (solar batteries), sensors (receptor layers in resistive gas sensors), etc. One of the main problems with ITO coatings is the coating method: the most commonly used methods are CVD (Chemical Vapor Deposition) and PVD (Physical Vapor Deposition), which have various technical limitations. Among these limitations: 1) deposition over the entire volume of the chamber; 2) high cost of equipment; 3) high energy consumption during the deposition, etc. In this work, a perspective and universal approach to the preparation of planar structures of complex chemical composition and given geometry, the sol-gel technology1)–5), based on the use of hydrolytically active heteroligand metal coordination compounds as precursors, is studied in detail. Indium and tin alkoxoacetylacetanates have been used as components of functional inks, which were applied using inkjet printing, providing targeted coating, high print speed and resolution. The use of printing technologies makes it possible to obtain structures of the required geometry on various surfaces. Thus, the aim of this work was to study the sol-gel synthesis of indium and tin alkoxoacetylacetonates as components of functional ink for inkjet printing of transparent ITO electrodes. The synthesis of hydrolytically active heteroligand complexes was carried out using metal acetylacetonates during heat treatment of their alcoholic solutions under controlled conditions. The process of partial destructive substitution of chelate ligands for alkoxy fragments was monitored using IR and UV spectrophotometry. The resulting solutions of the complexes were used as components of functional ink for inkjet printing of structures, which after coating were subjected to hydrolysis in air and heat treatment at 300oC. The formed oxide coatings on the surface of glass substrates were studied using atomic force microscopy.