Oleksandr Dubikovskyi
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View article: Influence of Hf- and multi-rare earth introduction on the photo-transport properties of ZnO thin films deposited on Si by magnetron sputtering and post-annealed
Influence of Hf- and multi-rare earth introduction on the photo-transport properties of ZnO thin films deposited on Si by magnetron sputtering and post-annealed Open
Emerging evidence suggests that doped ZnO is one of the serious candidates for next-generation electronic devices because of its abundance in Earth, its nontoxicity, biocompatibility, and affordability, thus motivating many research effort…
View article: Parameter determination of ion-implanted layers of single crystals by integrated dynamical diffractometry
Parameter determination of ion-implanted layers of single crystals by integrated dynamical diffractometry Open
X-ray diffraction methods are highly informative for investigation of crystal structure imperfections. They are widely applied to determine the characteristics of structural defects in various materials. In this work, by processing experim…
View article: Formation and properties of GeSn:C films on silicon substrates
Formation and properties of GeSn:C films on silicon substrates Open
The paper reports the formation of GeSn:C films on silicon substrates by thermal spraying of Ge/Sn superlattices followed by implantation of C+ ions into them and annealing at 350 °C. It is shown that compared to Ge films, the crystallizat…
View article: Si-based n++-p–-p+-p–-p++ avalanche diode: Self-consistent modeling for infrared optoelectronic applications
Si-based n++-p–-p+-p–-p++ avalanche diode: Self-consistent modeling for infrared optoelectronic applications Open
A theoretical approach for modeling electric and photoelectric characteristics of specifically designed Si-based n++-p–-p+-p–-p++ avalanche photodiodes has been developed. The electrostatic characteristics (band bending, built-in electrost…
View article: Thermally-induced diffusion and structural phase transitions in Pt/Mn and Pt/Mn/Pt thin films
Thermally-induced diffusion and structural phase transitions in Pt/Mn and Pt/Mn/Pt thin films Open
We demonstrate the possibility of diffusion formation of the chemically ordered L1 0 -MnPt phase through the vacuum annealing of Pt(24 nm)/Mn(20 nm) and Pt(12 nm)/Mn(20 nm)/Pt(12 nm) layered stacks at 400 °C for 30 min. For the bi-layered …
View article: Low-temperature diffusion in thin-film Pt-(Au-)-Co heterostructures: a structural and magnetic characterization
Low-temperature diffusion in thin-film Pt-(Au-)-Co heterostructures: a structural and magnetic characterization Open
Formation of functional thin films for nanoelectronics and magnetic data storage via thermally induced diffusion-driven structural phase transformations in multilayer stacks is a promising technology-relevant approach. Ferromagnetic thin f…
View article: Surface Plasmon's Dispersion Properties of Vanadium Oxide Films
Surface Plasmon's Dispersion Properties of Vanadium Oxide Films Open
Білкові композиції, що наносяться на розроблені наноматеріали (ENM), вимагають наявності
\nнанорозмірних білкових молекул для багатьох біохімічних цілей. Потенційна небезпека токсичності та
\nвимога повної оцінки безпеки, спричинена складн…
View article: Optical Properties of Vanadium Oxide Films
Optical Properties of Vanadium Oxide Films Open
Як типовий корельований електронний матеріал, діоксид ванадію VO2 демонструє перехід метал-діелектрик при відносно низькій температурі. При нагріванні відбувається перехід від діелектричної моноклінної фази до металевої тетрагональної фази…
View article: Exciton-Assisted UV Stimulated Emission with Incoherent Feedback in Polydisperse Crystalline ZnO Powder
Exciton-Assisted UV Stimulated Emission with Incoherent Feedback in Polydisperse Crystalline ZnO Powder Open
A comparative analysis of the features of UV-stimulated emission (SE) of various disordered active materials based on ZnO crystallites for a random laser (RL) was carried out. The superlinear increase in the intensity of the UV photolumine…
View article: Exciton-Assisted UV Stimulated Emission with Incoherent Feedback in Polydisperse Crystalline ZnO Powder
Exciton-Assisted UV Stimulated Emission with Incoherent Feedback in Polydisperse Crystalline ZnO Powder Open
A comparative analysis of the features of UV- stimulated emission (SE) of various types of disorder active materials based on ZnO crystallites for a random laser (RL) was carried out. The superlinear increase in the intensity of the UV pho…
View article: Homogenization and short-range chemical ordering of Co–Pt alloys driven by the grain boundary migration mechanism
Homogenization and short-range chemical ordering of Co–Pt alloys driven by the grain boundary migration mechanism Open
Binary magnetic alloys like Co–Pt are relevant for applications as components of magnetic exchange coupled composites. Numerous approaches exist to tune the coercive field of Co–Pt alloys primarily relying on high-temperature processing ai…
View article: Phase composition and magnetic properties of post-annealed asymmetric Pt/Fe/Pt/Au/Fe thin films
Phase composition and magnetic properties of post-annealed asymmetric Pt/Fe/Pt/Au/Fe thin films Open
Intermetallic compound formation realized via thermally-induced diffusion intermixing of layered stacks is a prospective route for the formation of thin films with properties promising for practical applications. This can be further promot…
View article: Phase transition in vanadium oxide films formed by multistep deposition
Phase transition in vanadium oxide films formed by multistep deposition Open
VOx films deposited using the multistep method have been investigated. These films were deposited by repeating the two-stage method of low-temperature deposition – low-temperature annealing. The structure and characteristics of VOx thin fi…
View article: Explosive Crystallization of Amorphous Cobalt Films in a Strong Nonuniform Magnetic Field
Explosive Crystallization of Amorphous Cobalt Films in a Strong Nonuniform Magnetic Field Open
Исследован механизм взрывной кристаллизации аморфных плёнок кобальта, выращенных на аморфном углероде в отсутствии и при наличии сильного неоднородного магнитного поля. Установлено, что ключевым фактором для реализации взрывной кристаллиза…
View article: Improved Efficiency of ZnO and Ge Purification
Improved Efficiency of ZnO and Ge Purification Open
Unconventional ways to improve the efficiency of purification of two different semiconductor materials of current interest, ZnO and Ge, are described. It is shown that, by using chemically assisted vapour transport of ZnO with carbon as a …
View article: Be-ion implanted p-n InSb diode for infrared applications. Modeling, fabrication and characterization
Be-ion implanted p-n InSb diode for infrared applications. Modeling, fabrication and characterization Open
Transport theory for modeling the electric characteristics of high-quality p-n diodes has been developed. This theory takes into account a non-uniform profile of p- doping, finite thickness of the quasi-neutral regions and possible non-uni…
View article: Explosive Crystallization of Films of Amorphous Cobalt on a Sublayer of Carbon
Explosive Crystallization of Films of Amorphous Cobalt on a Sublayer of Carbon Open
Методами просвечивающей электронной микроскопии, электронной дифракции, малоугловой рентгеновской дифракции и вторичной ионной масс-спектрометрии исследован механизм взрывной кристаллизации аморфных плёнок кобальта, выращенных на аморфном …