OH Radical Intensity of Dielectric Barrier Discharge (DBD) Plasma Measured by Optical Emission Spectroscopy (OES)
Ahmad Qusnudin, Kusumandari Kusumandari, Teguh Endah Saraswati
Abstract
Abstract This study aims to identify the intensity of the OH radical emission spectrum of dielectric barrier discharge (DBD) plasma. The OH radical emission spectrum was measured using Optical Emission Spectroscopy (OES) Ocean Optic Maya Pro 2000. Characterization of current as voltage function is done by providing a high-voltage AC source to the DBD reactor with variations of 1-10 kV. The results of the characterization show that the current increase with voltage. The OES measurement of DBD plasma was carried out at a voltage of 10 kV. As a result, the OH radical emission in DBD plasma was observed at a wavelength of 313.54 nm. The smallest intensity was 4678.5 counts obtained at 2.4 s. While the greatest intensity was 13644.67 counts obtained at 44.6 s.