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Thin film electroluminescence (EL) device with double insulating layers was investigated using ZnS-based phosphor doped with various elements. Fabrication of thin insulating layer by ion-plating metho...d improved the breakdown resistance and brightness of EL device as compared with the layer fabricated by electron beam deposition. It was found that calcium and bismuth fluorides emit orange and white phosphor, respectively, in the ZnS-based EL devices. The color of EL could be modified by doping two phosphor centers, such as Tb-Ce and Tb-La, in the ZnS matrix.続きを見る
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