Study on Charged Particle Distribution According to Dielectric Thickness Variation in a DBD Cell Using 2D Simulation

Various studies are underway to improve the characteristics of Dielectric Barrier Discharge (DBD) cells. Given that the internal dielectric layer plays a pivotal role in DBD cells, continued analytical research on this component is essential. This paper investigates the distribution characteristics of charged particles in relation to variations in dielectric thickness using two-dimensional simulations. First, the luminance and luminous efficacy corresponding to different dielectric thicknesses are calculated; subsequently, the extent of charged particle diffusion is analyzed to identify the underlying causes. While increasing the dielectric thickness reduces both luminance and power consumption, it leads to a broader distribution of charged particles, which can enhance the luminous efficacy of the DBD cell.