Кафедра мікроелектроніки, електронних приладів та пристроїв (МЕЕПП)

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  • Публікація
    Certificate
    (2024) Babychenko, O.
    Training certificate for the successful completion of “MENTORS’ SMART UP”course by Sigma Software University
  • Публікація
    Possibility of Creating a Low-Cost Robot Assistant for Use in General Medical Institutions During the COVID-19 Pandemic
    (2022) Chekubasheva, V.; Glukhov, O.; Kravchuk, O.; Levchenko, Y.; Linnyk, E.; Rohovets, V.
    This article analyzes the experience and prospects of creating a robot assistant formedicalinstitutionsusinginthemodernconditionsofUkraine.Themain directions of fundamental and applied research are proposed, taking into account budget equipment. Recently, the creation of a system for monitoring the condition of patients in difficult epidemiological conditions has become of particular relevance in the world. It involves the use of an integrated autonomous control system for robotic patients to work with patients in hospitals. For medical institutions, the task of equipping with modern pieces of equipment is also relevant. Autonomous systems carry out independent processing of medical premises and instruments, especially in infectious diseases departments and also premises with increased requirements for cleanliness. One of the possible solutions to this problem is the use of medical autonomous robotic assistants.
  • Публікація
    Cathodic vacuum arc multilayer coatings (TiZrSiY)N/NbN : structure and properties depending on the deposition interval of alternate layers
    (2023) Beresnev, V. M.; Lytovchenko, S. V.; Azarenkov, M. O.; Maksakova, O. V.; Horokh, D. V.; Mazilin, B. O.; Kaynts, D.; Doshchechkina, I. V.; Gluhov, О. V.
    Two series of multilayer coatings with different numbers of bilayers (268 and 536, respectively) were synthesised using the cathodic vacuum-arc deposition (CVAD) with the simultaneous sputtering of two different cathodes. The first cathode was made of the multicomponent TiZrSiY material, and the second one was made of technical niobium. The coatings were condensed in a nitrogen atmosphere at a constant negative bias potential applied to the substrate. The resulting coatings have a distinct periodic structure composed of individual layers of (TiZrSiY)N and NbN with the thicknesses determined by the deposition interval (10 or 20 s, respectively). The total thicknesses of the coatings determined by the number of bilayers were 11 and 9 microns, respectively. The formation of polycrystalline TiN and NbN phases with grain size comparable to the size of the layers has been identified for both series of coatings. The layers exhibit a columnar structure growth with a predominant orientation (111). The hardness of the experimental coatings depends on the thickness of the layers and reaches 39.7 GPa for the coating with the smallest layer thickness. The friction coefficient of the obtained coatings varies from 0.512 to 0.498 and also depends on the thickness of the layers. A relatively large value of the friction coefficient is due to high roughness and the presence of a droplet fraction on the surface as well as in the volume of the coatings.
  • Публікація
    Creating of a remote-presence robot based on the development board Texas Instruments to monitor the status of infected patients
    (2022) Chekubasheva, V. A.; Kravchuk, O. A.; Hlukhova, H.; Glukhov, O. V.
    Statistics show that many infections of employees in medical institutions are associated with direct contact with patients. Furthermore, the deterioration of the patient’s condition in the intervals between doctor’s rounds was observed. Therefore, control and reduction of morbidity through introducing new monitoring methods without the direct involvement of human resources remains an urgent issue. This paper considers an alternative method for monitoring the state of infectious patients undergoing treatment. In this article, we have described the use of standard elements for scanning the medical state of people for the timely detection of pathologies with the implementation of instant notification of the attending physician. Based on the functionality of the Texas Instruments Robotics System Kit (TI-RLSK) developer board and additional sensors, an autonomous robot scanner was created. The considered embodiment of the model systemizes the provided recording recognition of a specific patient with the parameters of the health state in a database. In addition, the navigating system with an updated real-time map of the area enables the robot to deliver medicine to patients.
  • Публікація
    Influence of the Bias Potential and Working Gas Pressure on the Properties of the TiSiN/NbN Ion Plasma Multilayer Coating
    (2022) Horokh, D. V.; Maksakova, O. V.; Klymenko, S. A.; Lytovchenko, S. V.; Beresnev, V. M.; Glukhov, O. V.
    The phase composition, element distribution, and mechanical properties of the TiSiN/NbN(TiN) multilayer coatings obtained by vacuum arc deposition are anlyzed. The effect of the bias potential on the mechanical and tribological characteristics of the coatings is studied, and the adhesion strengths of the coatings to the substrate are measured. The results of X-ray diffraction stud ies of the coatings show that a two-fold increase in the bias potential leads to increases in all phase and structural parameters—in particular, lattice parameters, crystallite sizes, and microdeformation levels of the components of the coatings. The intensities of δ diffraction peaks of TiN and NbN indicate the presence of a strong (200) texture. Tribotechnical studies of the coatings have shown that they are erased during scratching, but their detachment from the substrate has not been recorded. This means that the coatings are worn by the cohesive mechanism associated with plastic deformation and the for mation of fatigue cracks in the coating volume. Different modes of coating formation correspond to different values of acoustic emission that occurs, depending on the conditions, in the loading zone.
  • Публікація
    Creation of a Prototype of a Multi-function Remote Presence Robot for Physical Research in Electronics
    (2021) Beresnev, V. M.; Chekubasheva, V. A.; Glukhov, O. V.; Kravchuk, O. O.
    The article presents methods for constructing and implementing an automated electronic system for collecting and analyzing information about various physical parameters of the environment under conditions of long-term continuous measurements. The system is based on microprocessor devices using wireless technologies with the implementation of the EKF SLAM algorithm for localizing places with an uneven distribution of environmental parameters to minimize pollution of cleanrooms. Also, it can then transmit signals through the operator's computer to the control elements of the room. Thus, the minimization of environmental factors for physical diseases and high-precision equipment is carried out, thereby extending its service life.
  • Публікація
    Фізика напівпровідників. Частина 1. Основи фізики напівпровідників : навч. посіб. для студентів ЗВО
    (ХНУРЕ, 2023) Глухов, О. В.; Кравчук, О. О.; Левченко, Є. В.; Грицунов, О. В.; Ануфрієв, В. В.
    У першій частині навчального посібника розглянуто основи фізики напівпровідників, необхідні майбутнім бакалаврам з електроніки й мікро- та наносистемної техніки для початкового опанування дисциплін, що вивчають твердотільні електронні прилади та пристрої. Описано, зокрема, базові поняття кристалографії та кристалофізики, елементи зонної теорії твердого тіла, статистику рухомих носіїв заряду, струми та контактні явища у напівпровідниках, перехідні процеси, явища електричного пробою та ін. Навчальний посібник розроблено відповідно до програми дисципліни «Фізика напівпровідників» і призначено здобувачам вищої освіти усіх форм навчання спеціальності 171 Електроніка за освітньою програмою «Електронні пристрої та системи» та спеціальності 176 Мікро- та наносистемна техніка за освітньою програмою «Мікро- та наноелектроніка» для самостійної роботи та дистанційного навчання.
  • Публікація
    Напівпровідникові квантові генератори з наноструктурами
    (ХНУРЕ, 2019) Пащенко, О. Г.; Галат, О. Б.; Бабиченко, О. Ю.
    У навчальному посібнику викладено основи взаємодії оптичного випромінювання з речовиною, конструкція, принцип дії і основні характеристики відкритих резонаторів, а також конструкція, принцип дії і основні параметри світловипромінювальних і лазерних діодів. Розглянуто фізичні принципи і найбільш поширені математичні моделі відкритих резонаторів та енергетичного спектра наноструктур. Рекомендується студентам денної та заочної форм навчання спеціальностей 171 Електроніка і 153 Мікро- та наносистемна техніка.
  • Публікація
    Energy states of particles in a quantum sized structure with a complex shaped band diagram
    (ХНУРЕ, 2020) Pashchenko, A.; Gritsunov, O.; Babichenko, O.
    The subject of research in the article is the energy spectrum of a multilayer quantum sized structure with an energy profile of a complex shape. The goal of this work is to study the interaction of quantum-confined and quasi- continuum energy states of particles under the action of an external stationary electric field applied perpendicular to the planes of quantum confinement. The following tasks were solved in the article: The spectrum of eigenfunctions and eigenvalues of particle energy is determined, both in the area of the quantum confinement and in the area of the quasi-continuum. The definition of the eigenfunctions takes into account the fact that the phase of the eigenfunctions changes due to the motion of particles over the quantum well. The following methods were used to solve the set tasks: quantum mechanical modeling of stationary states in a structure with an energy profile of a complex shape; methods of the theory of small perturbations for describing the interaction of particles in such a structure. The following results were obtained: the basic calculation relations of the mathematical model of the energy states of particles and quasiparticles in quantum-limited and quasi-continuum states were obtained within the framework of the quantum-mechanical approach. The interaction of energy states of particles and quasiparticles in each of the bands between quantum-confined and quasi-continuum states is described depending on the external influence. The theory of small perturbations is applied in the paper to assess the degree of interaction. Conclusions: Analysis of the results of modeling the energy spectrum of a structure with two quantum wells, calculated for an unperturbed state and for the case of external action in the form of a stationary electric field, leads to the following conclusions: in the absence of an external field acting on the considered quantum well structure, electrons and holes located above the separation barrier are characterized by a non-monotonically increasing spectrum of energy states. In this case, the particles are predominantly localized above the quantum wells; the action of a constant external electric field on the structure under consideration leads to the manifestation of the quantum-limited Stark effect both for solitary and for multilayer periodic quantum well structures. In this case, the delocalization of the wave functions and the shift of the corresponding energy levels (the lowest energy levels in the structure under consideration) is expressed as strongly as in multilayer symmetric structures. At the same time, the effect is almost invisible for the higher levels. This is especially pronounced for the energy levels lying above the separation barrier. Thus, it can be expected that an equidistant energy spectrum can be realized at a certain external field strength, which in turn should simplify significantly the attainment of the second harmonic generation mode if the structure under consideration is used in the active region of a semiconductor laser.
  • Публікація
    Методи навчання студентів спеціальності мікро- та наносистемна техніка
    (ХНУРЕ, 2023) Пятайкіна, М. І.
    In modern conditions, in order to form highly qualified specialists in the field of micro- and nanoelectronics, it is necessary to modernize the educational process. In these abstracts of the report, some innovative methods of teaching disciplines in technical universities are given
  • Публікація
    Левітація крапель води
    (ХНУРЕ, 2023) Орда, В. Р.
    This paper investigates the levitation of water drops using the stroboscopic effect. With the help of an Arduino microcontroller and a special setup, the water drops are suspended in the air and can move up or down by changing the frequency of flashes. Research is conducted on a dynamic head with a membrane and a nozzle that gives the water a laminar effect.
  • Публікація
    Нанотехнологічний оптичний сенсор для визначення органічних речовин у водних об’єктах
    (ХНУРЕ, 2023) Логунов, В. С.; Сушко, О. А.
    In abstract a problem is considered concerning the definition in water objects of organic substances such as polycyclic aromatic hydrocarbons (PAH). Optical sensor for organic substances detection is developed. It represents portable device which is based on semiconductor quantum dots which are the detector elements of optical sensor. The principle of optical sensor operation is based on electrochemical and electrochemiluminescence methods using modern nanomaterials and nanotechnologies. It can be used in medicine and ecology for investigation and monitoring of water object for PAH content detection.
  • Публікація
    Тонкоплівковий світлодіодний випромінюючій елемент на основі органічних сполук
    (ХНУРЕ, 2023) Просяник, М. С.
    An artificial lighting device based on a thin film structure using organic nanolayers, as well as diffraction microstructures for the redistribution of the light flux, is considered in the presented work. The modern ITO/HMTPD/TAZ:Ir(ppy)3-BCP/Alq3/Al structure was chosen for modeling and calculation of light and electrical characteristics. As a result of the performed modeling, the electrical and optical characteristics of the indicated LED were obtained, in particular, the volt-ampere characteristic, the light characteristic, the spatial distribution of radiation, the directional diagram of the device.
  • Публікація
    Technological progress and the theory of technological singularity
    (ХНУРЕ, 2023) Stepanov, D.
    The report discusses the purpose of technological progress, the theory of technological singularity and the modern element base of electronics. The advantages and risks of technology development are explored, the increasing complexity of electronic devices and systems, their vulnerability to cyber-attacks is emphasized. The theory of technological singularity and the potential transformative events that it can cause are considered in detail. It also touches upon the issue of e-waste disposal and the importance of proper disposal methods to minimize the environmental impact of electronic devices. Discusses the use of hardware to prevent cyberattacks and the e-waste business.
  • Публікація
    Зондові методи створення наноструктур
    (ХНУРЕ, 2023) Руденко, С. О.
    This paper presents methods for studying the atomic structure and local surface properties. A scanning tunneling microscope (STM) and an atomic force microscope (AFM) are considered. Their main advantages and disadvantages, as well as the principles and areas of their application are considered.
  • Публікація
    Практичні аспекти застосування матричної електродинаміки в моделюванні НВЧ-приладів
    (ХНУРЕ, 2023) Білоцерківська, А. І.
    Some practical aspects of the matrix electrodynamics application to solving the computational problems in electronics are considered. The main specificity of the new method consists in the treatment of electrodynamic systems (ESs) of microwave electron devices as oscillatory systems with a finite number of the degrees of freedom. ES is considered as a lattice of spatially localized partial oscillators (oscillets). The eigenfrequencies and eigenfunctions of the ES can be calculated basing on the matrix theory of oscillatory systems with lumped elements. The advantage of this approach is substitution of the partial derivative differential equations with the linear algebra problems
  • Публікація
    Математичні моделі нанотранзистора на основі графену
    (ХНУРЕ, 2023) Стецко, К. М.
    The given work provides methods of mathematical modeling of graphene based nanotransistors, which have shown tremendous potential in the field of electronics. The mathematical models presented in this work aim to provide a better understanding of the behavior of graphene-based nanotransistors, which can help in the optimization of their design and performance. In this study was reviewed the fundamental properties of graphene that make it a promising material for nanoelectronics.
  • Публікація
    Порівняльний аналіз інтернет-протоколів mqtt та coap для використання в інтернеті речей
    (ХНУРЕ, 2023) Доля, А. С.
    New technologies for the remote communication of software and hardware packages for automatic control of smart homes and technological processes are considered. The comparative analysis of contemporary protocols for the most prospective technology “internet of things” (IoT) is given. IoT is a system of interrelated computation devices and digital actuating mechanisms that are supplemented with the ability to transfer data over the internet without any human interaction. Industrial applications of IoT (industrial internet of things, IIoT) require more fast and reliable protocols than HTTP or WebSocket. Some advantages and disadvantages of MQTT and COAP protocols for the next IIoT systems are shown up and discussed.
  • Публікація
    Сцинтиляційний детектор для рентгенівської радіографії
    (ХНУРЕ, 2023) Мольський, С. Ф.
    Luminescent materials based on A2B6 compounds are among the most promising for X-ray radiography. The main advantages of crystals of this type are a high internal quantum yield of luminescence and wide possibilities for influencing the emission spectra and other initial characteristics of luminescent materials. To unambiguously determine the type of substance, the radiography system uses sequentially located low-energy and high-energy scintillation detectors, as well as a filter. In the case of low useful signal levels, it is important to have a minimum noise level of the detector crystal. For this, the noise characteristics of the sensitive element of the detector were optimized.
  • Публікація
    Особливості тандемного фотоперетворювача на основі перовскітних матеріалів
    (ХНУРЕ, 2023) Слюсаренко, О. А.
    Tandem solar cell consist of several light absorber with different band gaps. It has great potential in breaking the Shockley−Queisser efficiency limit of a single junction solar cell, based on the traditional material (Si, GaP, CdTe and etc.), by absorbing light in a wide range of wavelengths. Perovskite solar cell is ideal candidate for tandem solar cell due to their tunable band gaps, high efficiency and easy fabrication.