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Ramazanov S, Sobola D, Gajiev G, Orudzhev F, Kaspar P, Gummetov A. Multiferroic/Polymer Flexible Structures Obtained by Atomic Layer Deposition. Nanomaterials (Basel) 2022; 13:139. [PMID: 36616050 PMCID: PMC9823920 DOI: 10.3390/nano13010139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
The paper considers how a film of bismuth ferrite BiFeO3 (BFO) is formed on a polymeric flexible polyimide substrate at low temperature ALD (250 °C). Two samples of BFO/Polyimide with different thicknesses (42 nm, 77 nm) were studied. As the thickness increases, a crystalline BFO phase with magnetic and electrical properties inherent to a multiferroic is observed. An increase in the film thickness promotes clustering. The competition between the magnetic and electrical subsystems creates an anomalous behavior of the magnetization at a temperature of 200 K. This property is probably related to the multiferroic/polymer interface. This paper explores the prerequisites for the low-temperature growth of BFO films on organic materials as promising structural components for flexible and quantum electronics.
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Affiliation(s)
- Shikhgasan Ramazanov
- Amirkhanov Institute of Physics, Dagestan Federal Research Center, Russian Academy of Sciences, Makhachkala 367003, Russia
| | - Dinara Sobola
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 61600 Brno, Czech Republic
| | - Gaji Gajiev
- Amirkhanov Institute of Physics, Dagestan Federal Research Center, Russian Academy of Sciences, Makhachkala 367003, Russia
| | - Farid Orudzhev
- Amirkhanov Institute of Physics, Dagestan Federal Research Center, Russian Academy of Sciences, Makhachkala 367003, Russia
| | - Pavel Kaspar
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 61600 Brno, Czech Republic
| | - Adil Gummetov
- Amirkhanov Institute of Physics, Dagestan Federal Research Center, Russian Academy of Sciences, Makhachkala 367003, Russia
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Rabadanova A, Abdurakhmanov M, Gulakhmedov R, Shuaibov A, Selimov D, Sobola D, Částková K, Ramazanov S, Orudzhev F. Piezo-, photo- and piezophotocatalytic activity of electrospun fibrous PVDF/CTAB membrane. Chim Tech Acta 2022. [DOI: 10.15826/chimtech.2022.9.4.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
A composite material based on polyvinylidene fluoride (PVDF) nanofibers modified with cetyltrimethylammonium bromide (CTAB) was synthesized by coaxial electrospinning. The morphology and structure of the material were studied by SEM, FTIR spectroscopy, X-ray diffraction analysis, XPS, and the piezo-photo- and piezo-photocatalytic activity during the decomposition of the organic dye Methylene blue (MB) was studied. It is shown that the addition of CTAB promotes additional polarization of the PVDF structure due to ion-dipole interaction. It has been shown for the first time that the addition of CTAB promotes the photosensitivity of the wide-gap dielectric polymer PVDF (the band gap is more than 6 eV). It was demonstrated that the photocatalytic decomposition efficiency was 91% in 60 minutes. The material exhibits piezocatalytic activity – 73% in 60 minutes. Experiments on trapping active oxidizing forms have established that OH hydroxyl radicals play the main role in the photocatalytic process.
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Ramazanov S, Sobola D, Ţălu Ş, Orudzev F, Arman A, Kaspar P, Dallaev R, Ramazanov G. Multiferroic behavior of the functionalized surface of a flexible substrate by deposition of Bi 2 O 3 and Fe 2 O 3. Microsc Res Tech 2022; 85:1300-1310. [PMID: 34820938 DOI: 10.1002/jemt.23996] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 10/07/2021] [Accepted: 11/10/2021] [Indexed: 02/05/2023]
Abstract
Thin films of bismuth and iron oxides were obtained by atomic layer deposition (ALD) on the surface of a flexible substrate poly(4,4'-oxydiphenylene-pyromellitimide) (Kapton) at a temperature of 250°C. The layer thickness was 50 nm. The samples were examined by secondary-ion mass spectrometry, and uniform distribution of elements in the film layer was observed. Surface morphology, electrical polarization, and mechanical properties were investigated by atomic force microscope, piezoelectric force microscopy, and force modulation microscopy. The values of current in the near-surface layer varied in the range of ±80 pA when a potential of 5 V was applied. Chemical analysis was performed by X-ray photoelectron spectroscopy, where the formation of Bi2 O3 and Fe2 O3 phases, as well as intermediate phases in the Bi-Fe-O system, was observed. Magnetic measurements were carried out by a vibrating sample magnetometer that showed a ferromagnetic response. The low-temperature method of functionalization of the Kapton surface with bismuth and iron oxides will make it possible to adapt the Bi-Fe-O system to flexible electronics.
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Affiliation(s)
- Shikhgasan Ramazanov
- Faculty of Chemistry, Department of Physical and Organic Chemistry, Dagestan State University, Makhachkala, Russia
| | - Dinara Sobola
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Brno, Czech Republic
- Academy of Sciences ČR, Institute of Physics of Materials, Brno, Czech Republic
| | - Ştefan Ţălu
- The Technical University of Cluj-Napoca, The Directorate of Research, Development and Innovation Management (DMCDI), Cluj-Napoca, Romania
| | - Farid Orudzev
- Faculty of Chemistry, Department of Physical and Organic Chemistry, Dagestan State University, Makhachkala, Russia
| | - Ali Arman
- Vacuum Technology Research Group, ACECR, Sharif University Branch, Tehran, Iran
| | - Pavel Kaspar
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Brno, Czech Republic
| | - Rashid Dallaev
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Brno, Czech Republic
| | - Guseyn Ramazanov
- Faculty of Technology, Course "Design", Dagestan State Technical University, Makhachkala, Russia
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Papež N, Dallaev R, Kaspar P, Sobola D, Škarvada P, Ţălu Ş, Ramazanov S, Nebojsa A. Characterization of GaAs Solar Cells under Supercontinuum Long-Time Illumination. Materials (Basel) 2021; 14:ma14020461. [PMID: 33477904 PMCID: PMC7833441 DOI: 10.3390/ma14020461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 02/07/2023]
Abstract
This work is dedicated to the description of the degradation of GaAs solar cells under continuous laser irradiation. Constant and strong exposure of the solar cell was performed over two months. Time-dependent electrical characteristics are presented. The structure of the solar cells was studied at the first and last stages of degradation test. The data from Raman spectroscopy, reflectometry, and secondary ion mass spectrometry confirm displacement of titanium and aluminum atoms. X-ray photoelectron spectroscopy showed a slight redistribution of oxygen bonds in the anti-corrosion coating.
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Affiliation(s)
- Nikola Papež
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic; (N.P.); (R.D.); (P.K.); (D.S.); (P.Š.)
| | - Rashid Dallaev
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic; (N.P.); (R.D.); (P.K.); (D.S.); (P.Š.)
| | - Pavel Kaspar
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic; (N.P.); (R.D.); (P.K.); (D.S.); (P.Š.)
| | - Dinara Sobola
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic; (N.P.); (R.D.); (P.K.); (D.S.); (P.Š.)
- CEITEC BUT – Brno University of Technology, Purkyňova 656/123, 61200 Brno, Czech Republic;
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, St. M. Gadjieva 43-a, 367015 Dagestan Republic, Russia;
| | - Pavel Škarvada
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic; (N.P.); (R.D.); (P.K.); (D.S.); (P.Š.)
- CEITEC BUT – Brno University of Technology, Purkyňova 656/123, 61200 Brno, Czech Republic;
| | - Ştefan Ţălu
- Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Constantin Daicoviciu Street, no. 15, Cluj-Napoca, 400020 Cluj County, Romania
- Correspondence: or ; Tel.: +40-264-401-200; Fax: +40-264-592-055
| | - Shikhgasan Ramazanov
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, St. M. Gadjieva 43-a, 367015 Dagestan Republic, Russia;
| | - Alois Nebojsa
- CEITEC BUT – Brno University of Technology, Purkyňova 656/123, 61200 Brno, Czech Republic;
- Department of Solid State Physics and Surfaces, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 61600 Brno, Czech Republic
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Orudzhev F, Ramazanov S, Sobola D, Alikhanov N, Holcman V, Škvarenina L, Kaspar P, Gadjilov G. Piezoelectric Current Generator Based on Bismuth Ferrite Nanoparticles. Sensors (Basel) 2020; 20:s20236736. [PMID: 33255719 PMCID: PMC7728058 DOI: 10.3390/s20236736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/10/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Bismuth ferrite nanoparticles with an average particle diameter of 45 nm and spatial symmetry R3c were obtained by combustion of organic nitrate precursors. BiFeO3-silicone nanocomposites with various concentrations of nanoparticles were obtained by mixing with a solution of M10 silicone. Models of piezoelectric generators were made by applying nanocomposites on a glass substrate and using aluminum foil as contacts. The thickness of the layers was about 230 μm. There was a proportional relationship between the different concentrations of nanoparticles and the detected potential. The output voltages were 0.028, 0.055, and 0.17 V with mass loads of 10, 30, and 50 mass%, respectively.
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Affiliation(s)
- Farid Orudzhev
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, st. M. Gadjieva 43-a, 367015 Dagestan Republic, Russia; (F.O.); (S.R.); (D.S.); (N.A.); (G.G.)
| | - Shikhgasan Ramazanov
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, st. M. Gadjieva 43-a, 367015 Dagestan Republic, Russia; (F.O.); (S.R.); (D.S.); (N.A.); (G.G.)
| | - Dinara Sobola
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, st. M. Gadjieva 43-a, 367015 Dagestan Republic, Russia; (F.O.); (S.R.); (D.S.); (N.A.); (G.G.)
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 616 00 Brno, Czech Republic; (L.Š.); (P.K.)
- Central European Institute of Technology BUT, Purkyňova 123, 612 00 Brno, Czech Republic
| | - Nariman Alikhanov
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, st. M. Gadjieva 43-a, 367015 Dagestan Republic, Russia; (F.O.); (S.R.); (D.S.); (N.A.); (G.G.)
| | - Vladimír Holcman
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 616 00 Brno, Czech Republic; (L.Š.); (P.K.)
| | - Lubomír Škvarenina
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 616 00 Brno, Czech Republic; (L.Š.); (P.K.)
| | - Pavel Kaspar
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 616 00 Brno, Czech Republic; (L.Š.); (P.K.)
| | - Gamzat Gadjilov
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, st. M. Gadjieva 43-a, 367015 Dagestan Republic, Russia; (F.O.); (S.R.); (D.S.); (N.A.); (G.G.)
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Orudzhev F, Ramazanov S, Sobola D, Isaev A, Wang C, Magomedova A, Kadiev M, Kaviyarasu K. Atomic Layer Deposition of Mixed-Layered Aurivillius Phase on TiO 2 Nanotubes: Synthesis, Characterization and Photoelectrocatalytic Properties. Nanomaterials (Basel) 2020; 10:E2183. [PMID: 33147745 PMCID: PMC7693954 DOI: 10.3390/nano10112183] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 11/16/2022]
Abstract
For the first time, one-dimensional phase-modulated structures consisting of two different layered Aurivillius phases with alternating five and six perovskite-like layers were obtained by atomic layer deposition (ALD) on the surface of TiO2 nanotubes (Nt). It was shown that the use of vertically oriented TiO2 Nt as the substrate and the ALD technology of a two-layer Bi2O3-FeOx sandwich-structure make it possible to obtain a layered structure due to self-organization during annealing. A detailed study by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the coating is conformal. Raman spectroscopic analysis indicated the structure of the layered Aurivillius phases. Transient photocurrent responses under Ultraviolet-Visible (UV-Vis) light irradiation show that the ALD coating benefits the efficiency of photon excitation of electrons. The results of the photoelectrocatalytic experiments (PEC) with methyl orange degradation as a model demonstrate the significant potential of the synthesized structure as a photocatalyst. Photoluminescent measurement showed a decrease in the probability of recombination of photogenerated electron-hole pairs for ALD-coated TiO2 Nt, which demonstrates the high potential of these structures for use in photocatalytic and photoelectrochemical applications.
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Affiliation(s)
- Farid Orudzhev
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, st. M. Gadjieva 43-a, Dagestan Republic, 367015 Makhachkala, Russia; (S.R.); (D.S.); (A.I.); (A.M.); (M.K.)
| | - Shikhgasan Ramazanov
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, st. M. Gadjieva 43-a, Dagestan Republic, 367015 Makhachkala, Russia; (S.R.); (D.S.); (A.I.); (A.M.); (M.K.)
| | - Dinara Sobola
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, st. M. Gadjieva 43-a, Dagestan Republic, 367015 Makhachkala, Russia; (S.R.); (D.S.); (A.I.); (A.M.); (M.K.)
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic
- Central European Institute of Technology BUT, Purkyňova 123, 61200 Brno, Czech Republic
| | - Abdulgalim Isaev
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, st. M. Gadjieva 43-a, Dagestan Republic, 367015 Makhachkala, Russia; (S.R.); (D.S.); (A.I.); (A.M.); (M.K.)
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China;
| | - Asiyat Magomedova
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, st. M. Gadjieva 43-a, Dagestan Republic, 367015 Makhachkala, Russia; (S.R.); (D.S.); (A.I.); (A.M.); (M.K.)
| | - Makhmud Kadiev
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, st. M. Gadjieva 43-a, Dagestan Republic, 367015 Makhachkala, Russia; (S.R.); (D.S.); (A.I.); (A.M.); (M.K.)
| | - Kasinathan Kaviyarasu
- UNESCO-UNISA Africa Chair in Nanoscience’s/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, P.O. Box 392, Pretoria 0003, South Africa;
- Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, P.O. Box 722, Somerset West 8000, South Africa
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Ramazanov S, Sobola D, Orudzhev F, Knápek A, Polčák J, Potoček M, Kaspar P, Dallaev R. Surface Modification and Enhancement of Ferromagnetism in BiFeO 3 Nanofilms Deposited on HOPG. Nanomaterials (Basel) 2020; 10:E1990. [PMID: 33050330 PMCID: PMC7600225 DOI: 10.3390/nano10101990] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/30/2020] [Accepted: 10/07/2020] [Indexed: 11/16/2022]
Abstract
BiFeO3 (BFO) films on highly oriented pyrolytic graphite (HOPG) substrate were obtained by the atomic layer deposition (ALD) method. The oxidation of HOPG leads to the formation of bubble regions creating defective regions with active centers. Chemisorption occurs at these active sites in ALD. Additionally, carbon interacts with ozone and releases carbon oxides (CO, CO2). Further annealing during the in situ XPS process up to a temperature of 923 K showed a redox reaction and the formation of oxygen vacancies (Vo) in the BFO crystal lattice. Bubble delamination creates flakes of BiFeO3-x/rGO heterostructures. Magnetic measurements (M-H) showed ferromagnetism (FM) at room temperature Ms ~ 120 emu/cm3. The contribution to magnetization is influenced by the factor of charge redistribution on Vo causing the distortion of the lattice as well as by the superstructure formed at the boundary of two phases, which causes strong hybridization due to the superexchange interaction of the BFO film with the FM sublattice of the interface region. The development of a method for obtaining multiferroic structures with high FM values (at room temperature) is promising for magnetically controlled applications.
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Affiliation(s)
- Shikhgasan Ramazanov
- Faculty of Physics, Dagestan State University, Makhachkala, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia;
| | - Dinara Sobola
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 61600 Brno, Czech Republic; (D.S.); (R.D.)
- Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; (J.P.); (M.P.)
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia;
| | - Farid Orudzhev
- Department of Inorganic Chemistry and Chemical Ecology, Dagestan State University, Makhachkala, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia;
| | - Alexandr Knápek
- Institute of the Scientific Instruments of the Czech Academy of Sciences v.v.i., Královopolská 147, 61264 Brno, Czech Republic;
| | - Josef Polčák
- Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; (J.P.); (M.P.)
- Institute of Physical Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2896/2, 61669 Brno, Czech Republic
| | - Michal Potoček
- Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; (J.P.); (M.P.)
- Institute of Physical Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2896/2, 61669 Brno, Czech Republic
| | - Pavel Kaspar
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 61600 Brno, Czech Republic; (D.S.); (R.D.)
| | - Rashid Dallaev
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 2848/8, 61600 Brno, Czech Republic; (D.S.); (R.D.)
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