Electrical characterization of a nonthermal radio-frequency atmospheric-pressure microplasma in a parallel plate configuration has shown that reducing electrode gap into the submillimeter range increases current and power density at a reduced voltage as compared to similar plasmas at larger electrode gaps which have no gap dependence. Calculation of sheath thickness and electric fields in the s...

An electrostatic-spray ionization (ESTASI) method has been used for mass spectrometry (MS) analysis of samples deposited in or on an insulating substrate. The ionization is induced by a capacitive coupling between an electrode and the sample. In practice, a metallic electrode is placed close to but not in direct contact with the sample. Upon application of a high voltage pulse to the electrode,...

A plate−gap model of a porous enzyme doped electrode covered by a porous inert membrane has been proposed and analyzed. The two−dimensional−in−space mathematical model of the plate−gap biosensors is based on the reaction−diffusion equations containing a nonlinear term related to the Michaelis−Menten kinetics. Using numerical simulation of the biosensor action, the influence of the geometry of t...

Multi-walled carbon nanotubes (MWCNTs) were synthesized on platinum plate electrodes by the chemical vapor deposition (CVD) method. From the results of X-ray photoelectron spectroscopy and voltammetric investigation, the iron nanoparticles used as a catalyst for the MWCNT synthesis were enclosed with MWCNTs. The MWCNTs synthesized on the Pt plate (MWCNTs/Pt) electrode were immediately immersed ...

Quality factor variation with top electrode area in thin-film barium–strontium–titanate parallel-plate capacitors is discussed. At low frequencies, the geometry dependence is consistent with the presence of a parallel parasitic loss pathway enabled by conduction over the device mesa surface. At high frequencies, the variation in the quality factor with top electrode area is due to a geometry-in...

The dual corona electrode, consisting in an ionizing wire in parallel with a metallic cylindrical support, at same high voltage supply, has been extensively studied in relation with various electrostatic applications. In practical situations, the dual corona electrode may be installed in the proximity of metallic objects that will affect the electric field repartition and, hence, the developmen...

Dye-sensitized solar cells present promising low-cost alternatives to the conventional Silicon (Si)-based solar cells. The counter electrode  generally consists of Pt deposited onto FTO plate. Since Pt is rare and expensive metal, nanostructured carbonaceous materials have been widely investigated as a promising alternative to replace it. Carbon nanotubes  have shown significant properties such...

Abstract The ion-extraction process from a finite-size photoplasma is simulated by using two-dimensional electrostatic particle-in-cell code. To investigate the impact of different electrode configurations on ion extraction parallel plate, wire-type, II-type, and M-type are used. present study compares time these electrodes provides quantitative audit photoions. Through this, it observed that c...

Introduction: A problem posed by electrical field (E) stimulation of biological preparations with high excitation threshold is that the E intensity required for excitation is likely to induce water electrolysis at the electrode surface, which can alter the extracellular medium and cause deleterious effects on the cells. In this study, different electrode materials and geometries were tested aim...

An electric field in the dielectric barrier electrode system is necessary for ozone production because produced by discharge of O2 under a high-intensity field. The gas plasmas contain energetic particles, such as electrons, ions, atoms, and radicals. recombination O atom plasma will form O3. In this paper, dependence DC formation on geometry gap between electrodes materials were examined using...