Synthetic method of rare earth nanometer nuclear shell spherical particle luminescent material

Abstract

The invention discloses a synthetic method of a rear earth nanometer nuclear shell spherical particle luminescent material, and relates to a synthetic method of a luminescent material. The Stober process is used for synthesizing a spherical SiO2 core as follows: dissolving TEOS (tetraethoxysilane) in an ethanol solution containing water and ammonia, stirring at the room temperature, centrifuging, keeping at the constant temperature for hours and drying; and the sol-gel process is used for synthesizing SiO2@Lu2O3:Ln<3+>(Ln=Eu, Tb, Dy, Sm, Er, Ho and Tm) spherical particles with a core-shell structure as follows: dissolving lutetium oxide and oxide mixed with rare earth in nitric acid, mixing with a water-ethanol solution containing citric acid, adding PEG (polyethylene glycol), stirring, adding silicon particles, stirring, centrifuging a suspension liquid, precipitating, drying, and performing high temperature treatment to obtain products. The obtained products give out light in different colors respectively, have uniform shape and appearance, and are valuable luminescent materials.

Description

technical field [0001] The invention relates to a synthesis method of a luminescent material, in particular to a synthesis method of a rare earth nano core-shell spherical particle luminescence material. Background technique [0002] Rare earth elements are a huge treasure trove of luminescent materials. Among the various luminescent materials developed by humans, rare earth elements play a very important role. Rare earth luminescent materials have played a milestone role in the development of luminescent optics and luminescent materials. Especially in recent years, rare earth nanoluminescent materials with core-shell structure and morphology have received extensive attention in the fields of catalysis, separation technology, microelectronic devices, and biotechnology. So far, great efforts have been made in designing core-shell materials with different structures and synthetic methods of different shells. Despite this, there are still great challenges in realizing materia...

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Problems solved by technology

Despite this, there are still great challenges in realizing materials with uniform size, uniform morphology, and functionally tunable rare-earth nano-core-shell structures using simple methods.

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