Surface Dielectric Barrier Discharge Devices for Low Voltage and Low Power Radical Sheet

Publication date: February 2018 Source:Clinical Plasma Medicine, Volume 9, Supplement Author(s): Seunghun Lee, Sunghoon Jung, Do-Geun Kim To improve the electrical stability and portability of surface dielectric barrier discharge (SDBD) devices, it is necessary to secure low voltage and low power operations of SDBD. We fabricated polymer SDBD devices using commercial polymer substrates such as polyimide, polyethylene terephthalate. Functional thin film coatings were adapted to protect the degradation of polymer substrate due to reactive oxygen radicals. And the optimization of the electrode structure was conducted to minimize displacement current flow and maximize dissipated power. Several types of electrode such as circular, rectangular, and hexagonal geometry were investigated for SDBD devices. The SDBD showed stable discharge at a low voltage of 2 kV or less, and a pulse frequency of 5-10 kHz. Design parameters of flexible SDBD devices for low voltage and low power operations will be presented. Figure 1. Concept of radical sheet using surface dielectric barrier discharge Figure 2. Radical sheet fabricated on polyethylene terephthalate substrate

Source: Clinical Plasma Medicine - April 10, 2018 Category: Research Source Type: research