Open AccessInvestigation on Parameters of Atmospheric Pressure Plasma Jet by Electrical and Optical Methods
Author(s) -
Hom Bahadur Baniya,
Rajesh Prakash Guragain,
Gobinda Prasad Panta,
Siti Sarah Safaai,
Santosh Dhungana,
Gang Qin,
Deepak Prasad Subedi
Publication year - 2020
Publication title -
journal of nepal physical society/journal of nepali physical society
Language(s) - English
Resource type - Journals
eISSN - 2738-9537
pISSN - 2392-473X
DOI - 10.3126/jnphyssoc.v6i2.34857
Subject(s) - atmospheric pressure , atmospheric pressure plasma , plasma , jet (fluid) , electron temperature , electron density , atomic physics , argon , stark effect , lissajous curve , materials science , analytical chemistry (journal) , chemistry , electron , optics , electric field , mechanics , physics , meteorology , nuclear physics , quantum mechanics , chromatography
The atmospheric pressure plasma jet works under atmospheric pressure condition, has been developed for surface treatment and biomedical applications. The produced jet has been characterized by electrical and optical methods. To characterize cold atmospheric argon plasma discharge, its electron density, and electron energy (temperature) at various conditions have been estimated by using different techniques such as power balance, stark broadening, and intensity ratio methods respectively. Atmospheric pressure plasma jet (APPJ) has drawn much attention all over the world due to its applications in material processing, biomedical material processing, and thin film deposition. APPJ has been produced, using a high voltage and high frequency power supply (0-20 kV) and an operating frequency of 20 kHz. Results showed that the electron density was of the order of 1014 cm-3 and 1016 cm-3 as determined by power balance, intensity ratio, and stark broadening methods respectively while electron temperature was estimated to be about 0.46 eV and 0.53 eV at 3 kV and 4 kV respectively by using intensity ratio method. The energy dissipation per cycle of the discharge was also estimated by using the Lissajous figure method. Our results confirmed that the parameter such as electron temperature and density depend on the applied voltage, gas flow rate, and electrode distance as well.