А. В. Семченко

ORCID: 0000-0003-4442-8765
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About
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Research Areas
  • Ferroelectric and Piezoelectric Materials
  • Glass properties and applications
  • ZnO doping and properties
  • Acoustic Wave Resonator Technologies
  • Luminescence Properties of Advanced Materials
  • Gas Sensing Nanomaterials and Sensors
  • Multiferroics and related materials
  • Pigment Synthesis and Properties
  • Surface Roughness and Optical Measurements
  • Material Properties and Applications
  • Photonic Crystals and Applications
  • Electronic and Structural Properties of Oxides
  • Silicon Nanostructures and Photoluminescence
  • Quantum Dots Synthesis And Properties
  • TiO2 Photocatalysis and Solar Cells
  • Catalysis and Oxidation Reactions
  • Magnetic Properties and Synthesis of Ferrites
  • Perovskite Materials and Applications
  • Thin-Film Transistor Technologies
  • Ga2O3 and related materials
  • Nonlocal and gradient elasticity in micro/nano structures
  • Laser Material Processing Techniques
  • Transition Metal Oxide Nanomaterials
  • Protein purification and stability
  • Semiconductor materials and devices

Francisk Skorina Gomel State University
2015-2024

Nanjing University of Science and Technology
2022-2023

National Academy of Sciences of Ukraine
2016

Institute of Mechanics of Metal-Polymer Systems
2016

Institute of Physics
2016

Frantsevich Institute for Problems in Materials Science
2016

Ryazan Institute of Management and Law
2015

State Research Center of the Russian Federation
2015

Max Planck Institute for Demographic Research
2002

St. Petersburg Institute of Bioregulation and Gerontology
2002

Nitrogen dioxide (NO 2 ) is a serious environmental pollutant and can cause negative consequences on both human health vegetation growth. Herein, the possibility promise of using resistive sensor based pristine black silicon (BSi) to detect NO at room temperature are investigated. BSi prepared plasma‐based reactive ion etching. Scanning electron microscope (SEM) studies show that consists vertically standing nanoneedles has large surface area, which facilitates gas adsorption. The...

10.1002/pssr.202300058 article EN physica status solidi (RRL) - Rapid Research Letters 2023-03-18

In the framework of thermodynamic approach Landau-Ginzburg-Devonshire (LGD) combined with equations electrostatics, we investigated effect polarization surface screening on finite size effects phase diagrams, polar, and dielectric properties ferroelectric nanoparticles different shapes. We obtained analyzed analytical results for dependences transition temperature, critical size, spontaneous polarization, coercive field shape nanoparticles. The pronounced these characteristics scaling...

10.1063/1.4952707 article EN Journal of Applied Physics 2016-05-28

In this work, we have investigated the photocurrent and spectral sensitivity of silicon/SrTiO3:xNb/perovskite structures. The sol–gel method carried out deposition undoped SrTiO3 layers as well niobium-doped (SrTiO3:Nb) at atomic concentrations 3 6% Nb. perovskite layer, CH3NH3PbI3−xClx, has been deposited by vacuum co-evaporation technique. characterized scanning electron microscopy X-ray diffraction measurements. volt–ampere characteristics fabricated samples measured under illumination...

10.3390/photonics10070845 article EN cc-by Photonics 2023-07-21

Pure BiFeO3 (BFO) and doped Bi0.9La0.1FeO3 (BLFO) thin films were prepared on Pt/TiO2/SiO2/Si substrates by a modified sol–gel technique using separate hydrolysis procedure. The effects of final crystallization temperature La doping the phase structure, film morphology, nanoscale piezoelectric properties investigated. higher lead to an increase in grain size preferred (102) texture films. Simultaneously, decrease average effective coefficient (about 2 times La-doped films) area surface...

10.3390/ma14071694 article EN Materials 2021-03-30

Herein we report on the synthesis and effects of gradual loading TiO2 nanotube array layers with ZnO upon surface wettability. Two-step preparation was chosen, where layers, grown in a first instance by anodization Ti foil, were gradually loaded controlled amounts using reactive RF magnetron sputtering. After crystallization annealing, formerly amorphous nanotubes converted to predominantly anatase crystalline phase, as detected XRD measurements. The as-prepared exhibited well-aligned...

10.3390/nano10101901 article EN cc-by Nanomaterials 2020-09-23

4-Aminobenzoic acid esters of polyethylene glycol were synthesized and used for pegylation recombinant human interferon α-2b erythropoietin β.

10.1039/c5ra04950d article EN RSC Advances 2015-01-01

In the framework of thermodynamic approach Landau-Ginzburg-Devonshire (LGD) combined with equations electrostatics, we investigated effect polarization surface screening on finite size effects phase diagrams, polar and dielectric properties ferroelectric nanoparticles different shapes. We obtained analyzed analytical results for dependences transition temperature, critical size, spontaneous coercive field shape nanoparticles. The pronounced these characteristics scaling parameter, ratio...

10.48550/arxiv.1602.06285 preprint EN other-oa arXiv (Cornell University) 2016-01-01

Исследована смачиваемость слоев черного кремния (b-Si), сформированных методами реактивного ионного травления, металл-стимулированного химического травления и лазерно-индуцированного травления. Определены краевые углы смачивания изготовленных образцов деионизованной водой, глицерином, дийодметаном этиленгликолом. Показано, что поверхностная пленка окисла коэффициент увеличения площади b-Si оказывают существенное влияние на их смачиваемость, варьируя от гидрофильных к гидрофобным свойствам....

10.54503/0002-3035-2024-59.1-71 article RU Proceedings of NAS RA Physics 2024-05-08
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