Abstract
The results of study of the characteristics and parameters of plasma of a high-current nanosecond discharge in atmospheric pressure air between copper electrodes under conditions of strong overstress of the discharge gap are presented. Under such conditions, favorable conditions are created for igniting an atmospheric pressure diffuse discharge in an inhomogeneous electric field. The spatial, electrical and optical characteristics of the discharge, as well as the parameters of the air plasma with small additions of copper vapor are studied. It is shown that this type of discharge can be used for the synthesis of copper oxides nanostructures.
Highlights
Nanostructures of transition metal oxides are widely used in various technical devices and technologies, medicine, in particular, and in modern solar cells [1,2,3]
We present the results of an investigation of the synthesis conditions and some optical characteristics of thin nanostructured films based on copper and dissociation products of air molecules in an overstressed nanosecond discharge
The discharge was ignited in an overstressed gap (d = 1 mm) with a weakly nonuniform distribution of the electric field strength between copper electrodes with a spherical working surface with a radius of curvature 3 mm
Summary
Nanostructures of transition metal oxides are widely used in various technical devices and technologies, medicine, in particular, and in modern solar cells [1,2,3]. A promising method for synthesizing nanostructures of metals and their oxides is a pulsed discharge in distilled water or ethyl alcohol between metal electrodes [6, 7] These methods of synthesis have a number of drawbacks-the high cost of laser and vacuum equipment and the low yield of useful materials. It is actual to search for other electric-discharge technologies for the synthesis of nanostructures that would be based on a high-voltage diffuse discharge of nanosecond duration in atmospheric pressure air without the use of special preionization systems. We present the results of an investigation of the synthesis conditions and some optical characteristics of thin nanostructured films based on copper and dissociation products of air molecules in an overstressed nanosecond discharge
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