Gas Discharge Source of Synchronous Flows of UV Radiation and Silver Sulphide Microstructures

Abstract

The results of the study of the characteristics of a pulsed source of time-synchronous UV radiation streams of silver atoms and ions and micro-nanostructures of silver sulfide are given. An overvoltage nanosecond discharge was ignited in nitrogen between electrodes made of silver sulfide (Ag2S) at a distance between electrodes of 2 mm. Silver sulfide vapors were introduced into the gas-vapor mixture "Nitrogen - Ag2S" due to the ectonic mechanism. The voltage and current pulses, the pulsed power of the discharge, the energy contribution to the plasma for one pulse at pulse repetition frequencies of 40-1000 Hz were studied. The spectral characteristics of the discharge and the spatial characteristics of the microstructures deposited from the discharge plasma on a quartz substrate installed near the electrode system were studied. The discharge can be used as a source of bactericidal radiation and a source of microstructures based on silver sulfide, as well as a plasma chemical reactor for the synthesis of thin microstructured films of silver sulfide.

Keywords

• silver sulphide
• overvoltage nanosecond discharge
• radiation spectrum
• plasma
• pulsed source