Secondary emission of dielectrics used in plasma display panels

This experimental study concerns the secondary emission coefficient gamma f or two dielectrics (MgO and enamel) used in plasma display panels. Differen t pure rare gases were considered at pressures varying from 5 to 50 Torr. H ere, we present the variations of coefficient gamma as a function of the re duced field E/p. They were obtained by introducing the breakdown voltages m easured experimentally on a sample of plasma panel, into the self-sustained equation. Concerning a 0.5 mu m thick MgO layer, results are shown for fiv e gases (helium, neon, argon, krypton, and xenon) whereas for a 25 mu m thi ck enamel layer, they are presented for neon and xenon. (C) 2000 American I nstitute of Physics. [S0021- 8979(00)01220-2].