Abstract
Two-dimensional spatio-temporal behaviors of particle densities were investigated in a pulsed microdischarge cell of a DC-type plasma display panel (PDP) filled with a mixture of He and Xe gases. In the computer simulation, a fluid model was employed under local field approximation (LFA) for electrons, four kinds of ions, and seven kinds of excited species. Twelve simultaneous continuity equations were solved together with Poisson's equation with consideration of the absorption and reemission of imprisoned resonant radiations, and also the secondary electron emission at the cathode due to incidences of ions, metastable atoms and vacuum ultraviolet (VUV) photons. The results on the density of the resonance state Xe*(1s4) atoms, metastable state Xe*(1s5) atoms as well as the discharge current waveform, showed good agreement with the corresponding experimental results. The effects of electrode size and gap length were also investigated.