Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Different size SnS quantum dots are prepared by chemical bath deposition. size of the particles are varied from 2.4 to 14.4 nm by varying the deposition time from 30 to 120 min. solar cells are fabricated with these quantum dots. Cu2S coated FTO is used as counter electrode instead of the conventional platinum electrode and Na2S as electrolyte. Cu2S acts as a good catalyst for the polysulfide electrolyte...
This paper reports on a new type of micro-resonators enabled by micromachining of ion sliced X-cut LiNbO3 thin films. In operation, the device is excited into lateral vibrations, thus allowing the center frequency to be determined by the lithographically defined dimensions of the excitation electrodes. This configuration enables highly integrated single-chip multi-frequency solutions for future wireless...
With the development of the electric power and railway industry, more and more SF6 gas-insulated equipments have been applied. However the greenhouse effect and environmental pollution that caused by SF6 gas has been paid attention in recent years. Therefore looking for the SF6 alternative gas without reducing its insulation performance becomes one of the research hotspots. Epoxy resin has been widely...
A novel biocompatible packaging process for implantable electronic systems is described, combining excellent biocompatibility and hermeticity with extreme miniaturization. Biocompatible and clean room compatible materials and integration processes are evaluated and selected for die encapsulation and interconnection. Cytotoxicity, diffusion tests and corrosion tests using DI water and more aggressive...
In this paper, electrical tree structures once after initiation are presented, and the initiation time of electrical tree at different electric field strength is recorded by the stereomicroscope under continuous voltage. Applied voltage and electrode separation are changed to obtain different field strength. Numerical calculations based on curve fitting show a certain degree of field dependence of...
In this work, differences in surface erosion conditions stemming from the use of different discharge contexts were illustrated. It was shown that the end results may affect easily the conclusions of a comparative study. Epoxy and its composites containing silica were used for the tests. Despite accepted variants in the material processibility and affected properties, in some conditions, it was concluded...
The use of rubber materials in wind turbine blades, for example in controllable trailing edge flaps, requires research on their behavior under heavy exposure to electric fields and electrical discharges. Since the complex construction of blades usually involves several and often inhomogeneous materials, the testing methods selected should reflect the realistic conditions. In this paper the applicability...
This paper gives an overview of recent works on metal oxide resistive switching memory (RRAM). We explored the stochastic nature of resistive switching in metal oxide RRAM and a 2-D analytical solver was established to explain the switching parameter variations in HfOx-based RRAM. As an example of application beyond digital memory/storage, AlOx-based RRAM was explored for neuromorphic computing.
A new design for a dielectric elastomer actuator with geometrically confining reinforcements is presented. The resulting structures enable complex 3-dimentional motion without the need of the membrane prestretch. An in situ imaging system is used to capture the complex deformation pattern to evaluate the surface curvatures. The deformation mode is analyzed analytically using the bi-laminate theory...
In this paper we propose a method for the synthesis of silver and metal nanoparticles in general. It is based on the reduction of metallic salts dissolved in water by means of non-energetic ions delivered from atmospheric pressure glow discharge plasma. A high-voltage generator with the ability to provide AC and DC voltage components separately is built for this purpose. Using the dielectric barrier...
In this study, effects of ionic radius, charge, and mass on the electro sorption desalination performance of activated carbon electrodes were investigated. The sorption capacity of carbon electrodes was approximately 0.08-0.18 mmol/g carbon. The electro sorption capacity of monovalent ions was higher than multivalent ions. Covering area of cation on electrode is smaller than anion, when considering...
We propose a system where an Organic PhotoDetector (OPD) is realized directly onto the cleaved surface of a standard polymethylmethacrylate (PMMA)-based Plastic Optical Fiber (POF). The OPD photoactive layer is based on the bulk-heterojunction of [6,6]-phenyl-C61-butyric acid methyl ester with a squaraine dye, whose absorption spectrum well matches the POF minimum loss window in the red (around 650nm)...
We present the design, analysis, and experimental validation of a variable stiffness device based on annular dielectric electroactive polymer (EAP) actuators. The device is based on a diaphragm geometry, which partially linearizes the viscoelastic response of acrylic dielectrics, providing voltage-controlled stiffness without high damping losses. Multiple diaphragms can be connected in a single device...
Ta/Ta2O5 RRAMs show self-compliant characteristics in some Ta or Ta2O5 thickness range but Ti/TaOx RRAMs always need current compliance due to totally consumption of SC conduction layer.
The volume resistivity is an important parameter to reflect the electric performances of the insulation materials. In traditional two-electrode testing system for volume resistivity, the influence of the surface current doesn't be taken into consideration. As a result, higher testing error could be brought about for some insulation materials, especially for those with high resistivity. In order to...
This paper describes the development of flexible based tactile array sensors based on piezoresistive rubber for use in the leg tips of hexapod robotics. The sensors are composed of a sandwich similar structure, with a piezoresistive rubber used as the middle layer and flexPCB electrodes on the upper and lower part of the rubber. To address a wider range of tactile stimuli, namely the dynamic tactile...
This paper will entail the work of modeling, testing and verification of the Dielectric Electro Active Polymers (DEAP's) material. Whereby mathematical model will be derived to describe the statics and the dynamics of the DEAP's sheet, parameters of the models are determined using experimental/simulation results which will be used to verify and determine the precision of the derived dynamic model...
Lithium-ion batteries are central to the powertrain transformation taking place in the automotive industry, but the duration, cost, and complexity of experimental work for the characterization of aging mechanisms drive the need for models and model-based estimation approaches. This paper presents a model-based nonlinear parameter estimation method for the characterization of long-term capacity fade...
This paper presents XPS depth profiling study on the materials used in amorphous indium-gallium-zinc oxide thin-film transistors (a-IGZO TFTs) having Ti and Mo source/drain (S/D) electrodes. The XPS results suggest that there are some differences between Ti/a-IGZO and Mo/a-IGZO interface regions for the chemical states of the materials. The chemical states of the back-channel surfaces are also found...
This work presents the direct laser printing process for the fabrication of organic electronics. A Nd:YAG laser is used to print organic (P3HT, PQT) and inorganic materials (Ag nanoparticles) on various substrates.
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.