Journal of Physical Studies 26(2), Article 2501 [8 pages] (2022)
DOI: https://doi.org/10.30970/jps.26.2501

SPECTROSCOPIC DIAGNOSTICS OF OVERSTRESSED NANOSECOND DISCHARGE PLASMA BETWEEN ZINC ELECTRODES IN AIR AND NITROGEN

O. K. Shuaibov , R. V. Hrytsak , O. I. Minya, A. A. Malinina , Yu. Yu. Bilak , Z. T. Gomoki

Uzhhorod National University,
3, Narodna Sq., Uzhhorod, UA–88000, Ukraine

Received 11 January 2022; in final form 05 April 2022; accepted 07 April 2022; published online 27 May 2022

The paper presents emission spectra of an overstressed nanosecond discharge between zinc electrodes in air and nitrogen at pressures of 13.3 kPa and 20 kPa, respectively. In the process of microexplosions of inhomogeneities on the working surfaces of zinc electrodes in a strong electric field, zinc vapor is introduced into the discharge gap during the formation of ectons. This creates prerequisites for the formation of molecules and clusters of zinc, oxide and zinc nitride in plasma and the synthesis of thin nanostructured films of zinc, oxide and zinc nitride, which can be deposited on a glass or quartz substrate installed near the center of the discharge gap.

The spectral characteristics of the discharge were investigated from the central part of the discharge gap 2 mm in size. The main excited components of the plasma of vapor-gas mixtures based on zinc vapor and air and nitrogen have been identified, which, when deposited outside the discharge plasma, can lead to the formation of thin nanostructured films of zinc, nitride and zinc oxide.

Key words: overstressed nanosecond discharge, zinc, air, plasma.

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