The formation of negative ions produced in a negative point-to-plane corona discharge fed by a Ar/N2/CH4 gas mixture has been studied using mass spectrometry. The measurements were carried out in flowing regime at ambient temperature and a reduced pressure of 460 mbar. The CN− anion has been found to be the most dominant negative ion in the discharge and is believed to be the precursor of heavi...

In the present work, effect of cylindrical configurations sputtering device electrodes on plasma parameters (Debye length, electron temperature, density, frequency) is studied. Also, argon gas pressure discharge properties examined with pressures (0.08, 0.2, 0.4 and 0.6) Torr. The are diagnosed by optical emission spectrometry. spectroscopic method adopted for examining atomic spectra emission....

Combined effects of plasma seed treatment and activated waters (PAW) application on paddy was explored. Low pressure (100 torr) glow oxygen discharge (LPGOD) used for germination test revealed that 90s duration produced highest ~96% which is the rate obtained through technology. Plasma water prepared with submerged atmospheric air jet. PAW sprayed 1-5 times to plants. Field study divulged that:...

Capacitance−voltage characteristics of metal dielectric semiconductor structures with atomic layer deposition Al2O3 on n- and p-Cd0.22Hg0.78Te (with without a surface graded-gap layer) preliminary oxidized in oxygen glow discharge plasma the resulting oxide thickness 2 nm) have been studied. The obtained reveal positive fixed charge density ∼ (1−6) · 10^11 cm^(−2). ratio between slow states ban...

Glow discharge at atmospheric pressure using a dielectric barrier discharge can induce fluid flow, and operate as an actuator in flow control. In the present work, a modeling framework is presented to study the evolution and interaction of such athermal non-equilibrium plasma discharges in conjunction with low Mach number fluid dynamics. Under atmospheric pressure, the discharge can be simulate...

The electrical and spectral characteristics of a dielectric barrier discharge (DBD) are experimentally investigated in a sealed off coaxial cylinder filled with nitrogen at a pressure of 10 mbar. The discharge is a transient diffused glow at low frequency alternating voltage (60 Hz) and changes to a filamentary mode at high frequency alternating voltage (35 kHz). In case of pulsed voltage, the ...

Pair and bond-orientational correlation functions and structure factors, asused in colloidal science, are applied as quantitative indicators of the phase of the newly discovered "plasma crystals." These Coulomblattice structures are formed by charged microspheres levitated in glow discharge plasmas and are imaged photographically. Static structural analysis is demonstrated on the experimental d...