US 8,894,883 B2 · Yttrium oxide phosphor mixture and preparation method thereof

Abstract

Fluorescent materials and preparation methods thereof are provided. The fluorescent materials are represented by the general formula: M, Zn1-xAlxO and Y2O3: Re, wherein Re is at least one selected from Eu and Tb, M is at least one selected from Ag, Au, Pt and Pd in the form of nano-particle, and 0<×≦0.05. The said methods include the following steps: step 1, preparing a colloid of Zn1-xAlxO; step 2, preparing a colloid of Y and Re containing the metal element M; step 3, mixing the colloid of Zn1-xAlxO with the colloid of Y and Re, aging and heating treatment to form the fluorescent materials. Compared to the Y2O3 fluorescent materials in the art the present fluorescent materials have higher luminescence efficiency, conductivity, long life and industrial applicability.

Claims10

Dependent claims

An yttrium oxide phosphor mixture comprising:

M, Zn1-xAlxO and Y2O3:
Re;
wherein Re is at least one selected from Eu and Tb, M is at least one selected from the group consisting Ag, Au, Pt and Pd in the form of nano-particle, and 0<x≦0.05.

A preparation method of an yttrium oxide phosphor mixture, comprising the following steps:

S1, preparing a Zn1-xAlxO colloid, wherein 0<x≦0.05;
S2, preparing a Y, Re colloid containing metal nano-particle M or ion M, wherein Re is at least one selected from Eu and Tb, M is at least one selected from the group consisting Ag, Au, Pt and Pd;
and
S3, mixing the Zn1-xAlxO colloid with the Y, Re colloid containing M in water bath with stirring to produce a mixture colloid, aging and heat treating the mixture colloid to obtain the yttrium oxide phosphor.

1 more element

Dependencies are inferred from the claim text.

Yttrium oxide phosphor mixture and preparation method thereof

Life of this patent

Yttrium oxide phosphor mixture and preparation method thereof

Life of this patent

Abstract

Claims10