Search Results - "Filep, M.J."

Structural and impedance studies of copper-enriched (Cu0.75Ag0.25)7SiS5I-based ceramics by Studenyak, I.P., Pogodin, A.I., Shender, I.A., Bereznyuk, S.M., Filep, M.J., Kokhan, O.P., Kopcansky, P.

“…Copper-enriched (Cu0.75Ag0.25)7SiS5I-based ceramics were prepared from the micro- and nanopowders by pressing and sintering under developed technological…”
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Crystal growth and electrical conductivity of Ag7PS6 and Ag8GeS6 argyrodites by Pogodin, A.I., Filep, M.J., Izai, V. Yu, Kokhan, O.P., Kúš, P.

“…Single crystals of ternary argyrodites Ag7PS6 and Ag8GeS6 were grown by the method of directional crystallization from the melt. Large samples with size l = 30…”
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The copper argyrodites Cu7-PS6-Br : Crystal growth, structures and ionic conductivity by Pogodin, A.I., Filep, M.J., Malakhovska, T.O., Sabov, M.Yu, Sidey, V.I., Kokhan, O.P., Studenyak, I.P.

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Microhardness of single-crystal samples of Ag7+x(P1–xGex)S6 solid solutions by Shender, I.O., Pogodin, A.I., Filep, M.J., Malakhovska, T.O., Kokhan, O.P., Bilanych, V.S., Babuka, T.Ya, Izai, V.Yu

“…This work presents the results of microhardness investigations of single-crystal samples of Ag7+x(P1–xGex)S6 (x = 0, 0.1, 0.25, 0.33, 0.5, 0.75, 1) solid…”
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Influence of heterovalent cationic substitution on electrical properties of Ag6+x(P1−xGex)S5I solid solutions by Studenyak, I.P., Pogodin, A.I., Filep, M.J., Symkanych, O.I., Babuka, T.Y., Kokhan, O.P., Kúš, P.

“…•Crystals of Ag6+x(P1−xGex)S5I solid solutions are grown from the solution–melt.•Electrical conductivity was measured by means of impedance spectroscopy.•The…”
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Influence of crystal structure disordering on ionic conductivity of Ag7+x(P1−xGex)S6 single crystals by Pogodin, A.I., Filep, M.J., Studenyak, V.I., Symkanych, O.I., Stercho, I.P., Izai, V.Yu, Kokhan, O.P., Kúš, P.

“…We present a detailed study of Ag7+x(P1−xGex)S6 (x = 0.1; 0.25; 0.33; 0.5; 0.75) single crystals of novel superionic conductors with argyrodite structure. The…”
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Electrical properties of ceramics based on Ag7TS5I (T = Si, Ge) solid electrolytes by Studenyak, I.P., Pogodin, A.I., Shender, I.A., Studenyak, V.I., Filep, M.J., Symkanych, O.I., Kokhan, O.P., Kúš, P.

“…The ceramic samples based on the synthesized compounds of Ag7TS5I (T ​= ​Si, Ge) solid electrolytes were prepared with using of micro- and nanocrystalline…”
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Microstructural, mechanical and electrical properties of superionic Ag6+x(P1-xGex)S5I ceramic materials by Pogodin, A.I., Filep, M.J., Malakhovska, T.O., Vakulchak, V.V., Komanicky, V., Izai, V. Yu, Studenyak, Y.I., Zhukova, Y.P., Shender, I.O., Bilanych, V.S., Kokhan, O.P., Kúš, P.

“…This paper presents the preparation and study of new ceramics of Ag+-conductive solid electrolytes. Ceramic disks of Ag6+x(P1-xGex)S5I (х = 0; 0.25; 0.5; 0.75)…”
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Electrical properties of copper- and silver-containing superionic (Cu1−xAgx)7SiS5I mixed crystals with argyrodite structure by Studenyak, I.P., Pogodin, A.I., Studenyak, V.I., Izai, V.Yu, Filep, M.J., Kokhan, O.P., Kranjčec, M., Kúš, P.

“…The copper and silver containing (Cu1−xAgx)7SiS5I mixed crystals with argyrodite structure have been grown by direct solidification using the…”
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Influence of cation Si4+↔Ge4+ and P5+↔Ge4+ sub-stitution on the mechanical parameters of single crystals Ag7(Si1–xGex)S5I and Ag6+x(P1–xGex)S5I by Shender, I.O., Pogodin, A.I., Filep, M.J., Malakhovska, T.O., Kokhan, O.P., Bilanych, V.S., Skubenych, K.V., Symkanych, O.I., Izai, V.Yu, Suslikov, L.M.

“…Herein we present the results of microhardness investigations aimed at monocrystalline samples of Ag 7 (Si 1–x Ge x )S 5 I (0, 0.2, 0.4, 0.6, 0.8, 1) and Ag…”
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The copper argyrodites Cu7-nPS6-nBrn: Crystal growth, structures and ionic conductivity by Pogodin, A.I., Filep, M.J., Malakhovska, T.O., Sabov, M.Yu, Sidey, V.I., Kokhan, O.P., Studenyak, I.P.

“…Single crystals of the copper-containing Cu7-nPS6-nBrn (0 ≤ n ≤ 1) argyrodites have been grown by direct solidification using the Bridgman–Stockbarger…”
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Structure, electrical conductivity, and Raman spectra of (Cu1–xAgx)7GeS5I and (Cu1–xAgx)7GeSe5I mixed crystals by Studenyak, I.P., Pogodin, A.I., Studenyak, V.I., Filep, M.J., Kokhan, O.P., Kúš, P., Azhniuk, Y.M., Zahn, D.R.T.

“…[Display omitted] •From XRD, (Cu1–xAgx)7GeSe5I structure is described and compared to (Cu1–xAgx)7GeS5I.•Compositional behaviour of ionic and electronic…”
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Optical characteristics of silver-based nano-composites fabricated by an environmentally friendly method by Malakhovska, T.O., Pogodin, A.I., Filep, M.J., Pop, M.M., Studenyak, Ya.I., Nemesh, K.M., Mariychuk, R., Vakulchak, V.V., Komanicky, V., Vorobiov, S.

“…This work presents a simple and environmentally friendly method of synthesis of chitosan and Ag nanocomposites. The structure of the obtained organic matrix…”
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Preparation and electrical conductivity of (Cu0.5Ag0.5)7SiS5I-based superionic ceramics by Studenyak, I.P., Pogodin, A.I., Shender, I.A., Bereznyuk, S.M., Filep, M.J., Kokhan, O.P., Kúš, P.

“…The ceramics based on (Cu0·5Ag0.5)7SiS5I solid solution of superionic conductor with argyrodite structure were prepared by using the powders with different…”
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Electrical properties of cation-substituted Ag7(Si1–xGex)S5I single crystals by Studenyak, I.P., Pogodin, A.I., Shender, I.A., Filep, M.J., Kokhan, O.P., Kopčanský, P.

“…High-quality single crystals of Ag7(Si1–xGex)S5I (x = 0.2, 0.4, 0.6, 0.8) solid solutions are grown from the solution–melt by vertical zone crystallization…”
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Particularities of optical behavior of Ag8SiS6 single crystal by Pogodin, A.I., Shender, I.O., Pop, M.M., Filep, M.J., Malakhovska, T.O., Kokhan, O.P., Izai, V.Yu, Mariychuk, R.

“…Ag8SiS6 single crystal was grown by directional crystallization from melt. A crystal sample was investigated by optical ellipsometry and spectroscopy. This…”
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Crystal structure and electrical properties of Ag6PS5I single crystal by Studenyak, I.P., Pogodin, A.I., Filep, M.J., Kokhan, O.P., Symkanych, O.I., Timko, M., Kopčanský, P.

“…The single crystals of quaternary halogen Ag6PS5I were grown from the solution–melt by means of a vertical zone crystallization method. The crystal structure…”
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Preparation and ionic conductivity of Ag8GeS6-based ceramic materials by Pogodin, A.I., Filep, M.J., Vorobiov, S., Komanicky, V., Malakhovska, T.O., Kokhan, O.P., Vakulchak, V.V.

“…Herein we present the results of the study of ceramic materials made on the basis of Ag8GeS6 powders with different dispersion. The average grain size of…”
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Structure and optical characterization of chitosan-chitin/Ag nanocomposite thin films by Malakhovska, T.O., Pogodin, A.I., Filep, M.J., Mariychuk, R., Pop, M.M., Studenyak, Ya.I., Vakulchak, V.V., Komanicky, V., Vorobiov, S., Sabov, M.Yu

“…Chitin and its derivatives are common natural polymers that are widely used in various technological fields. In recent years, considerable attention has been…”
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Grain size effect on electrical properties of Ag6PS5I-based ceramic materials by Pogodin, A.I., Shender, I.O., Filep, M.J., Kokhan, O.P., Symkanych, O.I., Malakhovska, T.O., Suslikov, L.M., Kopčanský, P.

“…Micro- and nanocrystalline powders were prepared by grinding of pre-synthesized Ag6PS5I in an agate mortar and a planetary ball mill, which were further…”
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