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Abstract

Provided in the present invention is a metal nanoparticle-coating titanate fluorescent material, which has a molecular formula of A_1-x-yB_yTiO₃:xR@SiO₂@M_z, where A is one or two elements selected from Ca, Sr, Ba and Mg, where B is one element selected from Li, Na and K, where R is one or two elements selected from Eu, Gd, Tb, Tm, Sm, Ce, Dy and Mn, where M is one selected from Ag, Au, Pt, Pd and Cu nanoparticles, where 02, where 0−2, where @ represents a coating, where M is a core where SiO₂ is an intermediate layer shell, and where A_1-x-yB_yTiO₃:xR is an outer layer shell. The metal nanoparticle-coating titanate fluorescent material forms a core-shell structure by introducing metal nanoparticles, while the metal nanoparticles generate a Plasmon resonance effect, thus increasing the internal quantum efficiency of the metal nanoparticle-coating titanate fluorescent material, which is provided with increased luminescent intensity. Also provided in the present invention is a preparation method for the metal nanoparticle-coating titanate fluorescent material.

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First Claim