The Research Of Synthesizing Core—shell Structured Mgo@Y₂O₃:Eu³⁺ Red Phosphor And Its Properties

Rare-earth luminescent materials have been widely used in various fields, such as lighting, imaging display, radiation detection, emergency instructions, architectural and arts and crafts, and other fields. Y2O3:Eu3+is an excellent rare-earth luminescent materials, which have high luminous efficiency and color purity. As red phosphors in energy-saving fluorescent, Y2O3:Eu3+is irreplaceable in currently. There is a great price gap between europium and yttrium, reduce the content of europium in products can effectively reduce the consumption of high-priced material, which can effectly reduce production costs. Therefore, developing the new methods and techniques to reduce the content of europium become the key issues of researchers. In this papers, we did some modification research about the problems of Y2O3:Eu3+in practical applications, the main works were contained as below:1.The cheap MgO is selected for the core material, the monodisperse MgO microspheres is synthesised via precipitation..2. Designed and prepared the core-shell structured MgO@Y2O3:Eu3+red luminescent materials, the magnesium replace the partial of the ultraviolet can not reach in Y2O3:Eu3+particles, it can reduce the content of europium in the Y2O3:Eu+red phosphor which can reduce costs in production..