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Information × Registration Number 0224U001120, 0121U113219 , R & D reports Title Development of a long-term plan for the development of a scientific direct "Mathematical Sciences and Natural Sciences" popup.stage_title Head Gysak Andrii M., д.ф.-м.н.Minaiev Borys P., Доктор хімічних наук Registration Date 17-01-2024 Organization Bohdan Khmelnytsky National University of Cherkasy popup.description2 Research object is organic light-emitting heterostructures with thermally activated long-lived fluorescence and nanostructural transformations in open heterogeneous environments. The goal of the work is to accomplish tasks in accordance with the priority thematic directions outlined for the year 2023 in Section 2 of the Prospective Development Plan of Bohdan Khmelnytskyi Cherkasy National University in the scientific field "Mathematical Sciences and Natural Sciences" for the period from 2021 to 2025 (hereinafter referred to as the Prospective Plan), as indicated in Appendix 1 to Contract No. БФ /46-2021 dated August 2, 2021. Specifically, in 2023, the focus is on the priority thematic direction "Investigation of organic light-emitting heterostructures with thermally activated long-lived fluorescence and nanostructural transformations in open heterogeneous environments," as outlined in the mentioned document. Results and novelty. Obtained data on the electronic structure of exciplexes, the role of local triplet states, and the influence of spin-orbital interaction on the efficiency of thermally activated delayed fluorescence in organic light-emitting heterostructures. Developed a method for predicting the density of the crystalline phase of molecular crystals based on calculations of the crystal lattice in a vacuum using the semi-empirical PM7 method. Developed a new analytical model for simultaneous grain growth of intermediate phases with bamboo nanostructure and the thickness of these phases in reactive diffusion processes. Established a correlation between the kinetics of structural transformations and the physico-chemical characteristics of the suspension during hydro-mechanical synthesis of vanadium pentoxide nanobelts through intensive mixing of aqueous suspensions of starting material powders. Conducted a description of technological processes to improve the structure of powders consolidated by spark plasma sintering through tin immersion coating. Product Description popup.authors Bondarchuk Sergii V. Gonda Andrii R. Karaush-Karmazin Nataliia M. Korol Yaroslav D. Liashenko Yurii O. Minaeva Valentina O. Morozovich Vladyslav V. Panchenko Oleksandr O. Pasichnyy Mykola O. Titova Anastasiia Vyacheslavivna popup.nrat_date 2024-01-17 Close