A global discretization approach was taken to solve a self-consistent DC glow discharge model to study the interplay between modeling assumptions and convergence of the numerical solution techniques. It was found that the assumed form of electron di usivity temperature dependence had a profound in uence on the computed solutions. The numerical techniques developed o er a simple to implement alt...

Elemental and isotopic structures of the palladium cathode before and after experiment under DC glow discharge were investigated by time of flight secondary ion mass spectrometry (TOF-SIMS). Production of new elements with various atomic masses and impurities increase were surveyed. By analyzing obtained results, it was found that beryllium and nickel for deuterium-palladium system, and lithium...

Fluoropolymer ®lms prepared by radio frequency glow discharge (RF-glow discharge) are of interest as biomaterials coatings. Previous studies focused on hexa ̄uoroethane (C2F6, HFE) and tetra ̄uoroethylene (C2F4, TFE) as the monomer precursor have shown such surfaces to exhibit unique protein binding capabilities. In this study, slow, surface directed deposition of hexa ̄uoropropylene (C3F6, HFP) ®...

Glow discharge plasma in the excitable regime shows rich dynamical behavior under external forcing. By perturbing the plasma with a subthreshold sawtooth periodic signal, we obtained small subthreshold oscillations that showed resonance with the perturbation frequency. The resonance phenomenon can be useful to estimate characteristic of an excitable system. However, for suprathreshold perturbat...

Highly dispersed colloidal gold (Au) nanoparticles were synthesized at room temperature using glow discharge plasma within only 5 min. The prepared Au colloids were characterized with UV-visible absorption spectra (UV-vis), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM) equipped with an energy dispersion X-ray spectrometer (EDX). UV-vis, XPS and EDX results c...

A plasma polymerization process using a continuous glow discharge has been implemented for preparing proton conducting membranes from trifluoromethane sulfonic acid and styrene. The chemical and physical structure of plasma membranes has been investigated using FTIR and SEM. The films are homogeneous with a good adhesion on commercial gas diffusion layer (E-Tek). Their deposition rate can be in...

In glow discharge optical emission spectrometry, two-dimensional emission images for iron atomic lines were measured by using an imaging spectrograph equipped with a CCD detector, when a radio-frequency (r.f.) power source was employed for excitation. Emission images at the Fe I 371.99-nm and the Fe I 375.82-nm lines, having different excitation energies, were analyzed by the two-line method to...