A5065111816- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Geological and Geochemical Analysis
- Crystal Structures and Properties
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- Radioactive element chemistry and processing
- Mineralogy and Gemology Studies
- Chemical Synthesis and Characterization
- Geochemistry and Elemental Analysis
- Clay minerals and soil interactions
- Perovskite Materials and Applications
- Nuclear materials and radiation effects
- Metal Extraction and Bioleaching
- Solid-state spectroscopy and crystallography
- Geological Studies and Exploration
- Analytical chemistry methods development
- earthquake and tectonic studies
- Metal-Organic Frameworks: Synthesis and Applications
- Optical properties and cooling technologies in crystalline materials
- Polyoxometalates: Synthesis and Applications
- Analytical Chemistry and Chromatography
- Advanced Condensed Matter Physics
- Chalcogenide Semiconductor Thin Films
- Mass Spectrometry Techniques and Applications
St Petersburg University
2016-2025
Leibniz Institute for Solid State and Materials Research
2024
TU Dresden
2024
ITMO University
2020-2024
Institute of Volcanology and Seismology
2023
Russian Academy of Sciences
2023
Immanuel Kant Baltic Federal University
2023
Institute of Mineralogy
2019-2022
ORCID
2019
Heterovalent CsPbBr3 doping with Bi results in a significant red shift of the optical absorption both single-crystal and powdered samples. The low-temperature (3.6 K) photoluminescence studies perovskite single crystals indicate that position excitonic luminescence peak remains unaffected by that, turn, infers band gap Bi-doped is not changed as well. state density distribution valence Fermi level perovskites were determined another direct method ultraviolet photoelectron spectroscopy....
Abstract Structural transformations of metal-organic frameworks (MOFs) go through a complex energy landscape with multiple intermediate states. Although the allow controlling functional properties MOFs, an imbalance between MOF flexibility and rigidity sets fundamental barrier to achieving fast transformations. Here, we study stimuli-responsive structural transformation in 2D assembled from paddle-wheel secondary building units joined by semi-flexible organic ligand 1,2,4-triazole...
A family of coordination polymers (CPs) based on dynamic structural elements are great fundamental and commercial interest addressing modern problems in controlled molecular separation, catalysis, even data processing. Herein, the endurance fast dynamics such materials at ambient conditions still a challenge. Here, we report design series Cu-based CPs [Cu(bImB)Cl2] [Cu(bImB)2Cl2] with flexible ligand bImB (1,4-bis(imidazol-1-yl)butane) packed into one- two-dimensional (1D, 2D) structures...
Abstract Electrical doping of semiconductors is a revolutionary development that enabled many electronic and optoelectronic technologies. While inorganic organic well‐established, controlled electrical metal halide perovskites (MHPs) yet to be demonstrated. In this work, efficient n‐ p‐type MHPs by co‐evaporating the perovskite precursors alongside dopant molecules achieved. It demonstrated Fermi level can shifted up 500 meV toward conduction band 400 valence p‐doping, respectively, which...
Abstract This paper is a first detailed report of natural hexagonal solid solutions along the join Fe2P–Ni2P. Transjordanite, Ni2P, Ni-dominant counterpart barringerite (a low-pressure polymorph Fe2P), new mineral. It was discovered in pyrometamorphic phosphide assemblages Hatrurim Formation (the Dead Sea area, Southern Levant) and named for occurrence on Transjordan Plateau, West Jordan. Later on, mineral confirmed Cambria meteorite (iron ungrouped, fine octahedrite), it likely occurs CM2...
The Vuoriyarvi Devonian carbonatite–ijolite–pyroxenite–olivinite complex comprises several carbonatite fields: Neske Vara, Tukhta-Vara, and Petyayan-Vara. most common carbonatites in the Tukhta-Vara Neske-Vara fields are calciocarbonatites, which host P, Fe, Nb, Ta deposits. This paper focuses on Petyayan-Vara field, primary magmatic magnesian. least altered magnesiocarbonatites composed of dolomite with burbankite rich REE (up to 2.0 wt. %), Sr 1.2 Ba 0.8 %). These underwent stages...
We demonstrate that our bio-electrochemical platform facilitates the reduction of detection time from 3-day period existing tests to 15 min. Machine learning and robotized bioanalytical platforms require principles such as hydrogel-based actuators for fast easy analysis bioactive analytes. Bacteria are fragile environmentally sensitive microorganisms a special environment support their lifecycles during analytical tests. Here, we develop based on soft hydrogel/eutectic gallium-indium alloy...
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Use of coantioxidant systems is a prospective way to increase the effectiveness antioxidant species in tissue repair and regeneration. In this paper, we introduce novel scheme reactive oxygen (ROS) trap neutralization during self-assembly supramolecular melamine barbiturate material. The performed reaction chain mimics biological process ROS generation key stages enables one obtain stable hydroperoxyl organic radicals structure. Melamine also neutralizes hydroxyl radicals, radical controlled...
Abstract Despite the remarkable advances in field of perovskite photovoltaics, use toxic solvents for their fabrication poses a significant challenge to scale‐up and commercialization. The vast majority studies rely on using highly hazardous N, N‐Dimethylformamide (DMF), with green alternatives remaining scarce. In this work, glycerol formal (Gly‐F) is reported as solvent fabricating quasi‐2D ( n = 5) solar cells. Quasi‐2D films processed from Gly‐F exhibit high degree uniformity compact...
We present an optical study of MAPbBr3 single crystal grown from solution. The Pm3m symmetry was confirmed by electron backscatter diffraction. Our major attention focused on effects related to the excitonic states in MAPbBr3. Photoluminescence temperature dependence narrow exciton resonance showed encouragingly low inhomogeneous broadening Γ ≈ 0.5 meV that allows one distinguish signals free excitons and those arising recombination localized defects. Excitonic origin proved its superlinear...
On the basis of computational and experimental approaches, we provide molecular-level insights into melamine cyanurate (M-CA) self-assembly in aqueous solution identify corresponding mechanisms aggregation. Our analysis implies that small M-CA molecular complexes are stabilized predominantly via aromatic π–π-stacking rather than by formation hydrogen bonds. We demonstrate variation [M]/[CA] component concentration ratio results a smooth change structure critical nuclei from more disordered...
This article is devoted to the geology of titanium-rich varieties Petyayan-Vara rare-earth dolomitic carbonatites in Vuoriyarvi, Northwest Russia. Analogues these are present many carbonatite complexes. The aim this study was investigate behavior high field strength elements during late stages formation. We conducted a multilateral titanium- and niobium-bearing minerals, including petrographic study, Raman spectroscopy, microprobe determination chemical composition, electron backscatter...
Abstract In the last two decades, a large number of self‐assembled materials were synthesized and they have already found their way into large‐scale industry science. Hydrogen‐bond‐based supramolecular adducts are to unique properties be perfect host structures for trapping target molecules or ions. Such chemical systems believed resemble living matter can substitute cell in cases. Herein, report on an organic material based assembly barbituric acid melamine is presented. Surprisingly,...