2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)最新文献

{"title":"Flexible Humidity Sensors Based on Nanocellulose","authors":"V. Lapshuda, V. Koval, V. Barbash, M. Dusheiko, O. Yashchenko, S. Malyuta","doi":"10.1109/ELNANO54667.2022.9927092","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927092","url":null,"abstract":"The study describes methods for preparing cellulose from miscanthus stalks in an environmentally friendly way using a solution of peracetic acid and nanocellulose by the method of hydrolysis of organosolv miscanthus pulp. The properties and application of nanocellulose in capacitive and resistive humidity sensors have been studied. We have investigated influence of electrode parameters and operating frequency on sensor characteristics. It was determined that device sensitivity increases with decreasing of the distance between electrodes and operating frequency. The responses of capacitive and resistive humidity sensors based on nanocellulose were in the range of 1.15 - 102 nF and 5,1*101 - 1,1*103 correspondingly. The maximum value of sensitivity was reached up to 0,094 (%RH)−1.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132610581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Infrared Diffraction Radiation from Twin Dielectric Rods with Graphene Coatings as a Tool for Beam Position Sensing","authors":"Dariia O. Herasymova","doi":"10.1109/ELNANO54667.2022.9927044","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927044","url":null,"abstract":"This work presents a research into the infrared range diffraction radiation (DR) of a modulated beam of charged particles moving between twin dielectric circular nanowires covered with graphene. The latter are assumed zero-thickness and characterized with the Kubo formalism and resistive-type boundary conditions. We assume that the beam velocity is constant and apply the separation of variables in the local coordinates, combined with the addition theorem for the cylindrical functions. This enables us to cast the problem of DR to a Fredholm second-kind matrix equation and, therefore, guarantees the convergence. Due to convergence, both far and near DR-field characteristics can be computed with a controlled accuracy. The analysis shows the appearance of additional resonances linked with a deviation of the beam trajectory from the symmetric position. “Shining” of these resonances can be viewed as an instrument for the beam position monitoring with a nanoscale antenna.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131066482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface Plasmon Resonance In Gold Nanoparticles In Dielectric Media","authors":"A.V. Zarovska, A. Gilchuk, Y. Bacherikov, V. Romaniuk","doi":"10.1109/ELNANO54667.2022.9926764","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9926764","url":null,"abstract":"Plasmon resonance in metal nanoparticles depends on numerous factors. It could be characteristics of the particle - material, size and shape. And also, it could be characteristics of the surrounding medium. Localized surface plasmon resonance (LSPR) in spherical gold nanoparticles is studied. Characteristics of LSPR are controlled by changing dielectric permittivity of the surrounding medium in two ways. The first way consists of adding a transparent dielectric material to the nanoparticle sample. The main idea of the second way is to increase particle polarization using the time varying electric field. This method could be used to control characteristics of SRP in different applications.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131171237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Barium Titanate Based High-Temperature Dielectric Materials Doped with Bismuth, Sodium, Lithium for Metamaterial Application","authors":"T. Plutenko, O. V’yunov, A. Belous, O. Fedorchuk, O. Yanchevskii, Y. Stupin","doi":"10.1109/ELNANO54667.2022.9926992","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9926992","url":null,"abstract":"$mathbf{(0.95-x)BaTiO_{3}-xNa_{0.5}Bi_{0.5}TiO_{3-0.05}Li_{0.5}Bi_{0.5}TiO_{3}}$ high-temperature capacitors were prepared by semi-oxalate method. The addition of $mathbf{Li_{0.5}Bi_{0.5}TiO}_{3}$ does not affect the Curie temperature and decreases the sintering temperature from $mathbf{1300^{circ}{C} (in 0.9~BaTiO_{3}-0.1Na_{0.5}Bi_{0.5}TiO_{3})}$ to $mathbf{1220^{circ} {C}}$ (in $mathbf{0.85{BaTiO}_{3}-0.1{Na}_{0.5}{Bi}_{0.5}{TiO}_{3}-0.05{Li}_{0.5}{Bi}_{0.5}{TiO}_{3})}$. With the increase in x value, Curie temperature in solid solutions increases. The grain size of sintered ceramics decreases with an increase in sodium and bismuth concentration due to the segregation of $mathbf{Bi}^{3+}$ and $mathbf{Na}^{+}$ ions at the grain boundary. The most attractive properties for application as high-temperature dielectrics are obtained in a material with $mathbf{x}=0.1$ at less than 15% variation of relative permittivity of about 4200 between $mathbf{20^{circ}{C}}$ and $mathbf{170^{circ}{C}}$ at $mathbf{1~kHz}$. Obtained $mathbf{(0.95-{x}){BaTiO}_{3}-} mathbf{xNa_{0.5}Bi_{0.5}TiO_{3}-0.05Li_{0.5}Bi_{0.5}TiO_{3}}$ solid solutions exhibited excellent temperature stable dielectric properties and are promising candidates for high-temperature multilayer ceramic capacitors for automotive applications.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132882918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-Plasmon Resonances in the E-polarized Plane Wave Scattering and Absorption by a Circular Dielectric Wire with Partial Graphene Cover","authors":"Iryna O. Mikhailikova, Sergii V. Dukhopelnykov, R. Sauleau","doi":"10.1109/ELNANO54667.2022.9927110","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927110","url":null,"abstract":"We analyze how the total scattering cross-section (TSCS) and absorption cross-section (ACS) of a circular dielectric rod, illuminated with the E-polarized plane wave, is modified by a conformal graphene strip of arbitrary angular width and chemical potential. In the core of our treatment, there is a dual series equation where the unknown are the field angular Fourier harmonics. We subject this equation to the Inverse Discrete Fourier Transform (IDFT) that yields a Fredholm second kind matrix equation. Such a procedure guarantees the convergence of the obtained numerical results. We present the normalized TSCS and ACS versus the angular width of graphene strip and the frequency in the range from the statics to 1 THz. These plots convincingly demonstrate that the resonances on the lowest non-plasmon natural modes of the considered scatterer are still tunable due to the tunability of graphene's conductivity.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133089011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mathematical Simulation of Thin Magneto-Dielectric Layered Radiofrequency Coatings for Protection of Electronic Components","authors":"M. Rezinkina","doi":"10.1109/ELNANO54667.2022.9927014","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927014","url":null,"abstract":"With the help of carried mathematical simulation, effectiveness of application of the layered magneto-dielectric coatings with losses for preventing of the electromagnetic waves reflection from conductive parts of the electronic components is shown. Parameters of the relative permittivity and permeability in each layer are chosen equal to each other and their electrical conductivity is increased successively at approaching a protected object. With the help of such coatings having micrometer thickness of each layer, reflection of the electromagnetic waves can be effectively lessened - up to 1 % of the incident wave intensity levels. For simulation, the finite integration technique was applied. To decrease the calculation domain, the electromagnetic wave was presented as a sum of an incident and a reflected waves, and virtual the so-called matched layers were applied at the outer boundaries of the computational domain. These approaches were rearranged in relation to the problem solution in terms of the magnetic vector potential, which provides reduction of the required computational resources and therefore enables more effective search of the protective coatings with better characteristics.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133607809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficiency of Microwave Shielding Composites","authors":"Y. Didenko, D. Tatarchuk, Y. Poplavko","doi":"10.1109/ELNANO54667.2022.9927006","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927006","url":null,"abstract":"High frequency electromagnetic pollution in the environment needs strong attenuation of unwanted noise as for protection of electronic devices interference so for human health. Effective defense from the electromagnetic chaos can be realized by the layer of flexible absorbing microwave composite based on the polymers filled with conductive, magnetic or dielectric powder absorbers. General electromagnetic analysis is given both for the protective absorbing shielding so for absorbing materials selection. As determined, the absorption capacity of conductive and magnetic fillers decreases with increasing frequency, while fillers made of high-loss dielectric increase their absorbance with frequency rise. Substantiations are given for obtaining optimal electromagnetic parameters for shielding composites.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114068633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the Influence of the Acoustic Interaction of Cylindrical Piezoceramic Radiators in Planar Systems on their Physical Fields","authors":"O. Leiko, A. Derepa, O. Pozdniakova, Oksana Kocharian","doi":"10.1109/ELNANO54667.2022.9927021","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927021","url":null,"abstract":"Recently, in solving problems of sound radiation by systems of piezoceramic radiators, new approaches have emerged, which make it possible to significantly approximate the design parameters of systems to the actually measured ones. These approaches are associated with taking into account the specific features of these systems performing two functions - the function of converting electrical energy into acoustic energy and the function of forming the latter in the surrounding space. The peculiarity of the first function is the interconnection of the electric, mechanical and acoustic fields during energy conversion. The peculiarity of the second function is the interaction of the radiators in the system during the formation of its acoustic field. The aim of the work is to study the effect of acoustic interaction of cylindrical piezoceramic radiators in the composition of flat systems on their physical fields. Using the method of coupled fields in multiply connected domains, using the addition theorems for cylindrical wave functions, we obtain analytical relations that allow one to calculate the numerical results for the parameters of three interconnected physical fields that ensure the emission of sound by plane systems. Their analysis showed that with the radial symmetry of electrical excitation of cylindrical radiators, the conversion of electrical energy into mechanical energy is carried out on one - zero mode of oscillation. The placement of the radiators in the composition of the flat systems leads to the appearance of the effect of acoustic interaction between them in an external field, due to the multiple exchange of radiated and scattered waves. This effect destroys the radial symmetry of the acoustic loading of a single radiator. The violation of symmetry in the conversion of mechanical energy into acoustic energy leads to the appearance of oscillations that follow the zero mode. As a result, there is an effective redistribution of energy “pumped” into the radiators in the zero mode, between subsequent oscillations of the radiators. In turn, the emergence of new modes changes the acoustic field of a flat system. The results show the need to take into account the above features of the physical fields of the radiators in the composition of flat systems when choosing methods and developing methods for measuring field characteristics.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116502860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Negative Thermal Expansion in Polar Crystals","authors":"Y. Poplavko, A. Mnatsakanov","doi":"10.1109/ELNANO54667.2022.9927112","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927112","url":null,"abstract":"The physical nature of quite unusual physical phenomenon - negative thermal expansion - is considered. This effect in solids is conditioned by the self-ordering in internal structure, that usually seen in the polar and magnetic crystals. The negative expansion is associated with nature of non-centrosymmetric crystals which is caused by the difference in electroneutrality of atoms forming polar crystal. The negative expansion is specified by the configurational entropy due to the structural ordering in the pyroelectrics and ferroelectrics. In electronics, the negative thermal expansion can be applied in thermal compensators as well as in the technology for control thin films with certain characteristics.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130435637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Terahertz Frequency Signal Detector Based on an Antiferromagnetic Tunnel Junction at Room and Cryogenic Temperatures","authors":"V. Prokopenko, A. Vlasenko, O. Prokopenko","doi":"10.1109/ELNANO54667.2022.9927047","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927047","url":null,"abstract":"Cooling to cryogenic temperatures is widely used for improving the performance of various types of signal detectors. In this paper we theoretically analyze the performance of a prospective detector of (sub-)terahertz-frequency (TF) signals based on an antiferromagnetic tunnel junction (ATJ) $mathbf{Pt}/mathbf{Ir}_{0.2}mathbf{Mn}_{0.8}/mathbf{MgO}/mathbf{Pt}$ employing the tunneling anisotropic magnetoresistance (TAMR) effect. Using a simple theoretical model, where the $mathbf{MgO}$ tunneling barrier thickness, junction resistance, and TAMR ratio are considered as temperature-dependent values, we show that there are two distinct regimes of detector operation, although in both these regimes the detector output DC voltage $boldsymbol{U}_{mathbf{DC}}$ weakly depends on the temperature $boldsymbol{T}$, One of these regimes, observed at rather large signal frequencies $boldsymbol{f > 0.5} mathbf{THz}$, is characterized by the monotonic, almost linear dependence of UDC on $boldsymbol{T}$, however, in another, low-frequency regime $(boldsymbol{fsim 0.1}$ THz), the output DC voltage increases with a reduction of temperature. Such a behavior can be explained by the temperature dependence of intrinsic junction's resistance and capacitance, which, in turn, do influence on detector's inertial properties and its matching to an external 50 Ohm circuit. Obtained results demonstrate that cooling of ATJ-based signal detector can be useful only for devices operating at rather low frequencies lying in the sub-TF band.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124303304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}