Magnesium indium phosphate matrix material for rare earth phosphor and preparation method thereof

Abstract

The invention discloses a magnesium and indium phosphate matrix material for rare-earth phosphor and a method for preparing the magnesium and indium phosphate matrix material. Chemical composition of the magnesium and indium phosphate matrix material is Mg21-28In28-34P42-48Oy (the y is equal to 168-199). The method includes preparing the magnesium and indium phosphate matrix material by the aid of wet-chemical and solid-phase sintering processes. The magnesium and indium phosphate matrix material and the method have the advantages that a novel phosphate compound which can be used as a phosphor matrix material is successfully researched and developed and contains indium elements, rare-earth elements which are used as activation centers can partially replace the indium elements to enter matrix crystal lattices, and accordingly the compound prepared by the aid of the method can be used as the matrix material for the phosphor; reports on magnesium and indium phosphate matrix materials are unavailable in the prior art; processes for preparing the magnesium and indium phosphate matrix material are simple, and the like.

Description

Technical field: [0001] The invention relates to the field of rare earth luminescent materials, in particular to a magnesium indium phosphate matrix material for rare earth fluorescent powder and a preparation method thereof. Background technique: [0002] In today's information age, phosphors are widely used in lighting, display, decoration, detection, anti-counterfeiting and many other fields, and have become an indispensable material in people's daily life. As an important part of phosphor, the matrix has an important impact on the performance of the product. Different matrixes have different crystal structures. After doping with activated ions, the energy level splitting is different due to the different crystal field environments. Macroscopically, The above shows the difference in spectral properties. Because of its moderate phonon energy, strong absorption band in the vacuum ultraviolet-ultraviolet region, high solubility of rare earth ions, stable physical and chemic...

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Problems solved by technology

At present, most of the research work in this field is based on the doping modification of the reported compounds, or the research on a series of isomorphic compounds of the more mature matrix, while the work of exploring new matrix materials is relatively rare.

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