Abstract
Submicron sized powder phosphors with localized emission center (i. e. ZnS:Mn) was prepared for powder type electroluminescence (EL) device. Mean diameter of Submicron sized ZnS:Mn powder prepared by planetary ball mill was below 1 um. It was larger than thickness of thin film phosphor. Therefore, to obtain a high electric field compared with the conventional powder type EL device, thin film dielectric layer (BaTa2O6) was inserted into the conventional powder type EL device.
