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Registration Number

0221U105793, 0120U104113 , R & D reports

Title

Low-dimensional graphene-like transition metal dichalcogenides with controllable polar and electronic properties for advanced nanoelectronics and biomedical applications.

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Head

Morozovska Anna M., Доктор фізико-математичних наук

Registration Date

30-08-2021

Organization

Institute of Physics of National Academy of Sciences of Ukraine

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Object: Graphene-like low-dimensional transition metals dichalcogenides (LD-TMDs) with controlled polar and electronic properties. Aim: To create an analytical theory of polar and electronic properties of LD-TMDs and its application for forecasting and optimizing the properties of LD-TMDs. Methodologies: Landau-Ginzburg-Devonshire theory and molecular dynamics will be used to describe the polar and electronic properties of LD-TMDs, scanning probe microscopy, optical, IR and Raman spectroscopy. Novelty: The successful implementation of the project will lead to a self-consistent analytical theory to describe the key mechanisms and physical nature of polar, electronic and structural properties of LD-TMD. During the first stage: 1.1. Correlations of polar and electrophysical properties for different M'yM1-yX2 were found, based on the calculations performed within the LGD approach. 1.2. MD and fluorescence spectroscopy of the interaction of two-dimensional MX2 surfaces with biological molecules in an aqueous medium were performed. 1.3. Samples of LD MX2 and systems "LD MX2 - biological molecule" were prepared were studied using electrophysical measurements, SPM and SES. 1.4. Analytical and numerical calculations of polar and electrophysical properties of MXY monolayers were performed within the LGD approach. 1.5. MD and fluorescence spectroscopy of the interaction of two-dimensional MXY surfaces with biological molecules in vacuum and aqueous medium were performed. 1.6. The method of preparation of samples of MXY and systems "MXY - biological molecule" for optical and electrophysical measurements, SPM and vibrational spectroscopy has been worked out. 1.7. With the help of the developed theory the experimental information is analyzed and the influence of local electric fields and flexoelectric connection on the polar and electronic properties of LD-TMD is established.

Product Description

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Yesylevskyy Semen Oleksandrovych
Afonina Uliana Kostyantinivna
Bodnaruk Andriy Vasyl’jvych
Dovbeshko Galyna Ivanivna
Kurysheva Oleksandra Antonivna
Lopatina Yaroslava Yu.
Morozovska Hanna Mykolaivna
Pylypchuk Olexander Serhiyovych
Polovyi Ivan Oleksandrovych
Shevliakova Hanna Viktorivna

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2021-08-30