Influence of driving frequency on time-resolved propagation speed of surface-discharged AC-PDP

摘要

The space- and time-resolved discharge images from an alternating- current Plasma discharge panels (AC-PDPs) has been observed by a high-speed single frame camera, and visualized as motion images. It is shown that time-resolved light emitted by gas discharge has a different appearance from each side of the anode and cathode. Propagation speed of the cathode plasma is measured to be 1.2 mm/mu s, while the speed of anode plasma is measured to be 2.4 mm/ mu s. under the driving frequency f chemical bounds 100 KHz. Particularly, it is found in this experiment that expansion speed of the ion plasma on cathode is strongly related to that of ion acoustic wave in AC-PDP. The electron mobility on the anode is also found to be approximately two times of the ion mobility on the cathode, based on the plasma propagation speeds on both electrodes of anode and cathode in high-pressure surface-discharged AC-PDP.