STUDY OF MICROSTRUCTURE AND ELECTROLUMINESCENCE OF ZINC-SULFIDE THIN-FILM

The electroluminscent zinc sulfide thin film doped with erbium, fabric ated by thermal evaporation with two boats, are examined. The surface and internal electronic states of ZnS thin film are measured by means of X-ray diffraction and X-ray photoemission spectroscopy. The informa tion on the relations between electroluminescent characteristics and i nternal electronic states of the film is obtained. And the effects of the microstructure of thin film doped with rare earth erbium on electr oluminescence are discussed as well.