Study of interface and surface processes in heterogeneous nanostructures based on semiconductor oxides, chalcogenides and silicon

R&D registration number in UkrISEI: 0118U000200

What priority area of ​​science and technology does it correspond to: fundamental scientific research on the most important problems of developing scientific, technical, socio-economic, socio-political, human potential to ensure Ukraine’s competitiveness in the world and sustainable development of society and the state.

Research: fundamental.

Funding source: funds from the general fund of the state budget.

Perspective for further implementation in 2021-2022: completed.

Research level: no analogues in Ukraine.

Availability of a patent: 2 patents of Ukraine.

What additional actions require further research: requires funding to implement the results obtained.

Brief description, advantages, further prospects for application.

New mechanisms and patterns of synthesis of nanostructures based on quantum dots (QDs) in an environmentally safe and biocompatible environment have been established, new scientific principles have been determined for the efficiency of energy transfer from the excited state of the donor (KT CdS) to the ground state of the acceptor (methylene blue dye), a physical concept has been created for electric processes in nanostructures (NS) “sparry glass-SnO2” and systems “metal oxide – dye” in a borehole matrix. The mechanisms of interaction of acid and alkali molecules in the environment with ensembles of nanoparticles (NPs), which affect the nature of their photoluminescence (PL), are explained, the mechanisms of the relationship between the structural, optical, and electrophysical properties of Si/RuO2 layers are revealed, and the influence of adsorption is established. NS TiO2 and ZnO. New composites based on QDs with dyes with stable photochemical properties have been created. The mechanisms and fundamental regularities of interface and near-surface processes in heterogeneous PSs based on TiO2, SnO2, ZnO, A2B6 materials, scalded glasses and dyes, porous Si with surface layers of metal oxides (Si/ZnO, Si/TiO2, Si/Ru metals, their new functional characteristics for practical application.

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