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Registration Number

0223U000860, 0121U100310 , R & D reports

Title

Study of the processes of phase formation and self-assembly in vacuum condensates aimed at improving UV detectors based on ZnO

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Head

Petrushenko Serhii І.,

Registration Date

20-01-2023

Organization

V.N. Karazin Kharkiv National University

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 Phase formation and related morphological changes in two- and three-layer Ag-Ge films were investigated in this work. It is shown that due to metal-induced crystallization initially amorphous germanium layers can be converted into the crystalline state at 250 °C. Size effects of phase formation in a binary system were investigated. Differences between bi- and tri-layer films are observed in the context of their morphological evolution, which is consistent with the results of studies of other binary structures. The observed features of the behavior of binary films are explained within the framework of thermodynamic considerations. The main scientific results have been obtained for the first time. Their scientific value is due to the need to understand the relationship between the processes of phase formation and self- organization. Practical value is related to the demand for germanium crystal layers of nanometer thickness and the need to develop methods for creating modifying nanosized arrays. The next stage of the project will be based on the use of such arrays. The results of the research can be used by scientific institutions engaged in research aimed at creating nanoscale polycrystalline microelectronic layers, methods for modifying functional structures, and studying fundamental aspects of physical phenomena occurring at the metal/semiconductor interface if atomic contact of the layers is ensured.

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Klymenko Olena
Nevgasimov Oleksandr O
Petrushenko Serhii Ivanovich