EDTA錯体から作製されたY₂O₃:Eu赤色蛍光体粉末

抄録

Powder of Y₂O₃:Eu red phosphor was synthesized from metal-EDTA complexes as starting materials. The metal-EDTA complexes were formed by thermal drying of a solution mixture of Y- and Eu-EDTA·2NH₄ using a spray dryer. The EDTA powder obtained in this study was consisted of amorphous and spherical microparticles. The Y₂O₃:Eu powder was synthesized in a short time by thermal decomposition of the mixture of Y- and Eu-EDTA·2NH₄ powder. The morphology, crystallizing behavior, metal composition and luminescence characteristic of the samples were examined. The resulting powder indicated sufficient photoluminescence intensity.