Hydrogenated amorphous silicon alloys of carbon and germanium can be deposited by glow-discharge decomposition of gaseous hydrides or fluorides. Non-plasma methods such as photochemical vapour deposition are also used and offer guidelines for understanding and improving the standard glow-discharge method. These amorphous alloys usually have poorer structural and electronic properties than pure ...

Propagation of 143 kHz ultrasound through an atmospheric pressure glow discharge in air was studied experimentally. The plasma was a continuous dc discharge formed by a multipin electrode system. Distributions of the gas temperature were also obtained in and around the plasma using laser-induced Rayleigh scattering technique. Results show significant attenuation of the ultrasound by the glow di...

Radiation produced by low-voltage discharge in a gas containing deuterium was measured using a Geiger counter located within the apparatus. This radiation was found to consist of energetic particles that were produced only when the voltage was above a critical value. In addition, the emission was very sensitive to the presence of oxygen in the gas. In the presence of the required conditions, em...