Secondary emission of dielectrics used in plasma display panels

This experimental study concerns the secondary emission coefficient gamma for two dielectrics (MgO and enamel) used in plasma display panels. Different pure rare gases were considered at pressures varying from 5 to 50 Torr. Here, we present the variations of coefficient gamma as a function of the reduced field E/p. They were obtained by introducing the breakdown voltages measured 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 five gases (helium, neon, argon, krypton, and xenon) whereas for a 25 mu m thick enamel layer, they are presented for neon and xenon. (C) 2000 American Institute of Physics. [S0021- 8979(00)01220-2].