Study on the influence of dielectric characteristics on plasma jet characteristics

Dielectric barrier discharge is the most common way of generating plasma jets used in biomedicine. Most of the existing literature uses quartz glass as the dielectric and seldom researchers use ceramics. This paper studies the difference in the characteristics of plasma jets generated by dielectric barrier discharge when quartz glass and ceramics are taken as the dielectric. The differences in optical characteristics, temperature characteristics, discharge power and discharge current of plasma jets generated by the two dielectrics were studied, and the causes of the differences in characteristics were explored through thermally stimulated current experiment, laying the foundation for the further research on the differences in the biomedical application of plasma jet when using different dielectric.