Alexander Yu. Polyakov
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View article: Switchable Thermal Mid‐IR Conducting Polymer Antenna Arrays
Switchable Thermal Mid‐IR Conducting Polymer Antenna Arrays Open
While initial studies on conducting polymer plasmonic antennas have focused on the near‐infrared spectral range, their reversible plasmonic‐dielectric switchability presents significant potential also for the mid‐infrared (mid‐IR) ≈10 µm w…
View article: Ultrathin 3R-MoS2 metasurfaces with atomically precise edges for efficient nonlinear nanophotonics
Ultrathin 3R-MoS2 metasurfaces with atomically precise edges for efficient nonlinear nanophotonics Open
Dielectric metasurfaces that combine high-index materials with optical nonlinearities are recognized for their potential in quantum and classical nanophotonic applications. However, the fabrication of high-quality metasurfaces poses materi…
View article: Switchable narrow nonlocal conducting polymer plasmonics
Switchable narrow nonlocal conducting polymer plasmonics Open
Dynamically switchable surface plasmons in conducting polymers constitute an emerging route towards intelligent metasurfaces, but polymer plasmons have so far suffered from weak resonances with low quality factors ( Q < 1-2). Here, we addr…
View article: Humidity‐Enhanced NO<sub>2</sub> Gas Sensing Using Atomically Sharp Edges in Multilayer MoS<sub>2</sub>
Humidity‐Enhanced NO<sub>2</sub> Gas Sensing Using Atomically Sharp Edges in Multilayer MoS<sub>2</sub> Open
Ambient humidity poses a significant challenge in the development of practical room‐temperature NO 2 gas sensors. Herein, atomically precise zigzag edges are employed in multilayer MoS 2 , fabricated using electron beam lithography and ani…
View article: Switchable Narrow Nonlocal Conducting Polymer Plasmonics
Switchable Narrow Nonlocal Conducting Polymer Plasmonics Open
Dynamically switchable surface plasmons in conducting polymers constitute an emerging route towards intelligent metasurfaces, but polymer plasmons have so far suffered from weak resonances with low quality factors (Q < 1-2). Here, we addre…
View article: Ultranarrow Semiconductor WS<sub>2</sub> Nanoribbon Field-Effect Transistors
Ultranarrow Semiconductor WS<sub>2</sub> Nanoribbon Field-Effect Transistors Open
Semiconducting transition metal dichalcogenides (TMDs) have attracted significant attention for their potential to develop high-performance, energy-efficient, and nanoscale electronic devices. Despite notable advancements in scaling down t…
View article: Defect-assisted reversible phase transition in mono- and few-layer ReS2
Defect-assisted reversible phase transition in mono- and few-layer ReS2 Open
2D transition metal dichalcogenide (TMD) materials have attracted interest due to their remarkable excitonic, optical, electrical, and mechanical properties, which are dependent on their crystal structure. Consequently, controlling the cry…
View article: Ultrathin 3R-MoS2 metasurfaces with atomicallyprecise edges for efficient nonlinear nanophotonics
Ultrathin 3R-MoS2 metasurfaces with atomicallyprecise edges for efficient nonlinear nanophotonics Open
Dielectric metasurfaces that combine high-index materials with optical nonlinearities are widely recognized for their potential in various quantum and classical nanophotonic applications. However, the fabrication of high-quality metasurfac…
View article: Proton irradiation Of Ga2O3 Schottky diodes and NiO/Ga2O3 heterojunctions
Proton irradiation Of Ga2O3 Schottky diodes and NiO/Ga2O3 heterojunctions Open
View article: Humidity-enhanced NO$_2$ gas sensing using atomically sharp edges in multilayer MoS$_2$
Humidity-enhanced NO$_2$ gas sensing using atomically sharp edges in multilayer MoS$_2$ Open
Ambient humidity poses a significant challenge in the development of practical room temperature NO$_2$ gas sensors. Here, we employ atomically precise zigzag edges in multilayer MoS$_2$, fabricated using electron beam lithography and aniso…
View article: Ultrathin 3R-MoS$_2$ metasurfaces with atomically precise edges for efficient nonlinear nanophotonics
Ultrathin 3R-MoS$_2$ metasurfaces with atomically precise edges for efficient nonlinear nanophotonics Open
Dielectric metasurfaces that combine high-index materials with optical nonlinearities are widely recognized for their potential in various quantum and classical nanophotonic applications. However, the fabrication of high-quality metasurfac…
View article: Defect-assisted reversible phase transition inmono- and few-layer ReS2
Defect-assisted reversible phase transition inmono- and few-layer ReS2 Open
Transition metal dichalcogenide (TMD) materials have attracted substantial interest due to their remarkable excitonic, optical, electrical, and mechanical properties, which are highly dependent on their crystal structure. Controlling the c…
View article: Combining ultrahigh index with exceptional nonlinearity in resonant transition metal dichalcogenide nanodisks
Combining ultrahigh index with exceptional nonlinearity in resonant transition metal dichalcogenide nanodisks Open
Second-order nonlinearity in solids gives rise to a plethora of unique physical phenomena ranging from piezoelectricity and optical rectification to optical parametric amplification, spontaneous parametric down-conversion and the generatio…
View article: Defect-assisted reversible phase transition in mono- and few-layer ReS$_2$
Defect-assisted reversible phase transition in mono- and few-layer ReS$_2$ Open
Transition metal dichalcogenide (TMD) materials have attracted substantial interest due to their remarkable excitonic, optical, electrical, and mechanical properties, which are highly dependent on their crystal structure. Controlling the c…
View article: Quantum trapping and rotational self-alignment in triangular Casimir microcavities
Quantum trapping and rotational self-alignment in triangular Casimir microcavities Open
Casimir torque, a rotational motion driven by zero-point energy minimization, is a problem that attracts notable research interest. Recently, it has been realized using liquid crystal phases and natural anisotropic substrates. However, for…
View article: Top-down nanostructured multilayer MoS2 with atomically sharp edges for electrochemical hydrogen evolution reaction
Top-down nanostructured multilayer MoS2 with atomically sharp edges for electrochemical hydrogen evolution reaction Open
View article: High-Quality Cr2o3 - Ga2o3 Solid Solutions Films Grown by Mist-Cvd Epitaxy
High-Quality Cr2o3 - Ga2o3 Solid Solutions Films Grown by Mist-Cvd Epitaxy Open
View article: Quantum trapping and rotational self-alignment in triangular Casimir microcavities
Quantum trapping and rotational self-alignment in triangular Casimir microcavities Open
Casimir torque -- a rotational motion caused by the minimization of the zero-point energy -- is a problem that attracts significant theoretical and experimental interest. Recently, it has been realized using liquid crystal phases and natur…
View article: Combining ultrahigh index with exceptionalnonlinearity in resonant transition metaldichalcogenide nanodisks
Combining ultrahigh index with exceptionalnonlinearity in resonant transition metaldichalcogenide nanodisks Open
Second-order nonlinearity in solids gives rise to a plethora of unique physical phenomena ranging from piezoelectricity and optical rectification to optical parametric amplification, spontaneous parametric down-conversion, and the generati…
View article: Combining ultrahigh index with exceptional nonlinearity in resonant transition metal dichalcogenide nanodisks
Combining ultrahigh index with exceptional nonlinearity in resonant transition metal dichalcogenide nanodisks Open
Second-order nonlinearity in solids gives rise to a plethora of unique physical phenomena ranging from piezoelectricity and optical rectification to optical parametric amplification, spontaneous parametric down-conversion, and the generati…
View article: Enhanced Second-Order Nonlinearities at Strained Ultrasharp Zigzag Edges in Multilayer MoS<sub>2</sub>
Enhanced Second-Order Nonlinearities at Strained Ultrasharp Zigzag Edges in Multilayer MoS<sub>2</sub> Open
Transition metal dichalcogenide (TMD) materials attract significant research attention thanks to their exceptional excitonic and optical properties. In this work, we analyze the formation of strained ultrasharp zigzag edges in MoS2 multila…
View article: Top-Down Nanostructured Multilayer Mos2 With Atomically Sharp Edges for Electrochemical Hydrogen Evolution Reaction
Top-Down Nanostructured Multilayer Mos2 With Atomically Sharp Edges for Electrochemical Hydrogen Evolution Reaction Open
View article: Conducting Surface Layers Formed by Hydrogenation of O-Implanted Β-Ga2o3
Conducting Surface Layers Formed by Hydrogenation of O-Implanted Β-Ga2o3 Open
View article: Two-Dimensional Hole Gas Formation at the Κ-Ga2o3 /Aln Heterojunction Interface
Two-Dimensional Hole Gas Formation at the Κ-Ga2o3 /Aln Heterojunction Interface Open
View article: Foliar Application of Humic-Stabilized Nanoferrihydrite Resulted in an Increase in the Content of Iron in Wheat Leaves
Foliar Application of Humic-Stabilized Nanoferrihydrite Resulted in an Increase in the Content of Iron in Wheat Leaves Open
The objective of this study was to synthesize iron (hydr)oxide nanoparticles (IONPs) stabilized by humic substances, and to estimate the feasibility of their use for foliar application on iron deficient plants. The IONPs were synthesized b…
View article: Design of humic-based iron nanofertilizers: iron (hydr)oxide chemistry, nanoscale benefits, and multilevel impact of humic substances
Design of humic-based iron nanofertilizers: iron (hydr)oxide chemistry, nanoscale benefits, and multilevel impact of humic substances Open
View article: Humic acid-stabilized superparamagnetic maghemite nanoparticles: surface charge and embryotoxicity evaluation
Humic acid-stabilized superparamagnetic maghemite nanoparticles: surface charge and embryotoxicity evaluation Open
Superparamagnetic iron oxide γ-Fe 2 O 3 (maghemite) nanoparticles (SPION) encapsulated into water-soluble microspheres of rock salt were synthesized via a new aerosol spray pyrolysis procedure.Humic acids (HA) were employed to stabilize th…
View article: Eco-Friendly Iron-Humic Nanofertilizers Synthesis for the Prevention of Iron Chlorosis in Soybean (Glycine max) Grown in Calcareous Soil
Eco-Friendly Iron-Humic Nanofertilizers Synthesis for the Prevention of Iron Chlorosis in Soybean (Glycine max) Grown in Calcareous Soil Open
Iron deficiency is a frequent problem for many crops, particularly in calcareous soils and iron humates are commonly applied in the Mediterranean basin in spite of their lesser efficiency than iron synthetic chelates. Development and appli…
View article: The microstructure effect on the Au/TiO2 and Ag/TiO2 nanocomposites photocatalytic activity
The microstructure effect on the Au/TiO2 and Ag/TiO2 nanocomposites photocatalytic activity Open
In this work the systematic study of the Au/TiO 2 and Ag/TiO 2 nanocomposites was evaluated.Aeroxide P25 preparation was taken as a titania precusor.Composites were obtained using different wet chemistry techniques: impregnation by previou…
View article: Facile chemical routes to mesoporous silver substrates for SERS analysis
Facile chemical routes to mesoporous silver substrates for SERS analysis Open
Mesoporous silver nanoparticles were easily synthesized through the bulk reduction of crystalline silver(I) oxide and used for the preparation of highly porous surface-enhanced Raman scattering (SERS)-active substrates. An analogous proced…