Ion-induced secondary Electron Emission Characteristics of MgAl_2O_4

Abstract

Color ac-PDPs applies photoluminescnet phenomena from phosphors by the irradiation of ultraviolet rays caused by the gas discharge. MgO has been used as the protecting material for monochrome and color ac-PDPs, because it has the best property as the protecting material for ac-PDPs. MgO, however, has the drawback that MgO absorbs the utltraviolet rays completely. In order to improve the luminous efficiency of color PDPs, the present work measered the ion-induced secondary electron emission yield to evaluated whether a new protecting material, MgAl_2O_4, absorbs the ultraviolet rays or not.