A5018598510- Silicon Nanostructures and Photoluminescence
- Microbial Metabolites in Food Biotechnology
- Copper-based nanomaterials and applications
- Semiconductor materials and interfaces
- Semiconductor materials and devices
- Phytase and its Applications
- Enzyme Production and Characterization
- Chalcogenide Semiconductor Thin Films
- Quasicrystal Structures and Properties
- Collagen: Extraction and Characterization
- Bone Tissue Engineering Materials
- Nanowire Synthesis and Applications
- Semiconductor Quantum Structures and Devices
- ZnO doping and properties
- Seaweed-derived Bioactive Compounds
- Gas Sensing Nanomaterials and Sensors
- Anodic Oxide Films and Nanostructures
- Enzyme Catalysis and Immobilization
- Muon and positron interactions and applications
- Mesoporous Materials and Catalysis
- Polysaccharides Composition and Applications
- Microencapsulation and Drying Processes
- 2D Materials and Applications
- Magneto-Optical Properties and Applications
- Theoretical and Computational Physics
Voronezh State University
2009-2024
Abstract The lattice constant of Al x Ga 1− As epitaxial alloys with various Al‐As( ) content is determined for As/GaAs (100) heterostructures grown by MOVPE epitaxy using X‐ray diffractometry and back‐reflections method. An ordered AlGaAs 2 (superstructural) phase was found in ∼ 0.50. this along c axis smaller than the double constants an 0.50 alloy. Infrared (IR) reflection spectra vibrations were investigated different concentrations cation sublattice. In sample 0.50, besides two main...
Directed formation of the structure culture living cells is most important task tissue engineering. New materials for 3D scaffolds are critical mass adoption regenerative medicine protocols. In this manuscript, we demonstrate results molecular study collagen from Dosidicus gigas and reveal possibility obtaining a thin membrane material. The characterized by high flexibility plasticity as well mechanical strength. technology scaffolds, studies its properties, surface morphology, protein...
The aim of the investigation is to study morphological, technological and biopharmaceutical properties alginate-chitosan microcapsules with Vinpocetine. Materials Methods : Alginate-chitosan different concentrations sodium alginate (0.5%, 1%, 1.5%, 2%, 2.5% 3%) a medium viscosity chitosan solution (0.25-0,5%), as well not treated chitosan, were obtained. surface morphology was studied by methods atomic-powered microscopy use an NT-MDT Corporation probe scanning microscope (model Solver P47...
The Polymers Editorial Office retracts the article, "The Dosidicus gigas Collagen for Scaffold Preparation and Cell Cultivation: Mechanical Physicochemical Properties, Morphology, Composition Viability" [...].
Nanostructured composite films based on Ag-Si containing silver nanoparticles are used as a material for SERS (Surfaceenhanced Raman spectroscopy) substrates, plasmonic back reflector, nanoplasmonic sensors, nonlinear optics devices, memristor structures, etc. Due to the widespread use of nanocomposite Ag-Si, there is need develop simple and affordable methods their production compatible with semiconductor technology. Therefore, this work devoted an Ag80Si20 film high content (80 at.%) by...
The article presents the results of study lead sulfide films obtained by aerosol pyrolysis solutions complex compounds acetate and thiourea at temperatures 300 400 °С. concentration areas existence (II) hydroxo complexes were determined. We determined domination regions [Pb(N2H4CS)4]2+ complexes, which are precursors during deposition films. crystal structure, phase composition, surface morphology synthesized studied X-ray analysis atomic force microscopy. It was found that under these...
Thin films of copper oxide were fabricated by sol-gel method. For the preparation CuO thin films, a method based on acetate (Cu(CH3COO)2•H2O), isopropyl alcohol (C3H8O) and diethylamine ((CH3CH2 )2NH) was used. The film applied centrifugation at speed 1500 rpm for 75 seconds. in 2, 4, 8 layers with drying between 10 minutes 250 °C. thermal probe used to determine p-type conductivity films. annealed temperatures 300, 400, 500, 600 By X-ray phase analysis, it found that main is CuO. On without...
Abstract In this work, the X-ray reflectivity was used to study porosity of multilayer macroporous silicon samples obtained under various conditions. The calculation is based on a change in position critical angle total external reflection resulting from decrease density porous layer. Our findings show that absence photoluminescence due about 30 % surface morphological features were characterized by scanning electron and atomic force microscopy.
Представлены результаты исследований методами растровой электронной микроскопии, атомно-силовой микроскопии и рентгеновской дифракции многослойных нанопериодических структур (МНС) a-Si/ZrO2 a-SiOx/ZrO2 после напыления подвергнутых термическому отжигу при температуре 1100 °С. Для МНС обнаружено сравнительно более эффективное образование нанокристаллов кремния под действием высокотемпературного отжига. Стимулированная отжигом модификация структуры выражается в образовании неоднородностей с...
Local characteristics of surface roughness the polycrystalline Ag-Pd solid solutions (4 and 8 at. % Pd) which underwent potentiostatic electrochemical dealloying in an acidic nitrate aqueous solution were determined by scanning electron atomic force microscopy. A qualitative analysis SEM AFM micrographs demonstrated substantial morphological roughening alloys. This results from formation hollows cracks caused selective leaching electronegative silver recrystallization electropositive...
Technology of formation for nanostructured magnetic materials on silicon substrate with a mean nanostructures size ~ 25 nm and narrow distribution these was elaborated in the work. Single-domain magnetization character some obtained. Completely optical performed by circularly-polarized light at room temperature.
Porous silicon samples with a porosity index of 5% to 80% were obtained in this work by electrochemical etching, and their photoluminescence properties also studied. The was calculated according the data from X-ray reflectometry. composition surface controlled ultra-soft spectroscopy infrared (IR) spectroscopy. degree sample oxidation increased enhancement. Two known mechanisms porous detected that are related morphology its surface. values specifying dominations these determined....
Porous silicon samples with a porosity index of 5% to 80% were obtained in the work by electrochemical etching and their photoluminescence properties studied as well, Porosity was calculated according data X-ray reflectometry technique.Composition surface controlled ultra-soft spectroscopy infrared (IR) spectroscopy. Degree sample oxidation shown be increased enhancement enhancement. Two known mechanisms porous detected related composition morphology its surface. It found values specifying...