Nanocomposites and nanomaterials
Properties of inorganic-organic clathrate of complex hierarchical architecture
Maksymych V.1, Calus D.2, Pidluzhna A.2, Chabecki P.2, Ivashchyshyn F.1,2
1 Department of Applied Physics and Nanomaterials Science, Lviv Polytechnic National University, S. Bandera st. 12, 79013 Lviv, Ukraine
E-mail: vitalii.m.maksymych@lpnu.ua
2 Faculty of Electrical Engineering, Czestochowa University of Technology, Al. Armii Krajowej 17, 42-200 Częstochowa, Poland

The scientific interest in nanohybridized composite structures is due to the need for new functional-hybrid materials, which will satisfy modern industry requirements [1-2]. Therefore, the clathrate structure of complex hierarchical architecture was successfully synthesised by the thermal vacuum incapsulation technique with mesoporous MCM-41 as the inorganic matrix, - cyclodextrin (-CD) as organic host structure and ferrocene C10H10Fe as organic guest component.
The dielectric and polarization properties of synthesised МСМ-41<β-CD<C10H10Fe>> clathrate were investigated by the impedance spectroscopy method. The impedance measurements were made in the 10-3106 Hz frequency range with the use of potentiostat/galvanostat PGStat30 under normal conditions or in constant magnetic field with 2.75 kOe intensity. The investigation of clathrate properties under illumination was made using ABET technologies Solar simulator. Thermally-stimulated discharge spectra were recorded in the mode of short-circuited contacts at linear heating at a rate of 5°C/min.
As it was determined initial MCM-41 matrix is a dielectric material stable under magnetic field and illumination. The intercalation of MCM-41 with β-CD<C10H10Fe> leads to over 6 times increase in resistivity and changes in impedance response character which are more prominent under magnetic field applied and under illumination. The character of thermo stimulated current spectra confirms the changes in electrical properties of synthesized clathrate too.

1.	Wanga A., Gallino I., Riegler S.S., Lin Y-T., Isaac N.A., Camposano Y.H.S., Matthes S., Flock D.,  Jacobs H.O., Yen H-W., Schaaf P.  Ultrafast formation of single phase B2 AlCoCrFeNi high entropy alloy films by reactive Ni/Al multilayers as heat source // Materials & Design -2021.-206.-P.109790.
2.	Ivashchyshyn F., Pidluzhna A., Calus D., Hryhorchak O., Chabecki P., Makarchuk O. Multivoltaic GaSe<SmCl3> clathrate as new hybrid functional nanostructure // Bull. of Polish Acad. of Scien.-2021.- 69, N 2.-P. e136726.