Circularly polarized luminous chiral rare earth phosphate nano material, preparation method and application

Abstract

The invention relates to the field of nano materials, in particular to a circularly polarized luminous chiral rare earth phosphate nano material and a preparation method and application thereof, and the preparation method comprises the following steps: S1, preparing a rare earth reaction precursor solution and a phosphate ion reaction precursor solution; s2, adding the phosphate ion reaction precursor solution into the rare earth reaction precursor solution to obtain a mixed solution; s3, carrying out heat preservation on the mixed solution until a mixed turbid solution is obtained; and S4, centrifugally washing the mixed turbid liquid to obtain the chiral rare earth phosphate nanocrystal with the circularly polarized light-emitting property. According to the invention, a rare earth inorganic compound and chiral molecules are combined to synthesize the chiral rare earth phosphate nanocrystal with circular polarization fluorescence property. The simple and efficient coprecipitation method is adopted, operation is easy, reaction conditions are easy to achieve, cost is low, and good universality is achieved.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to a circularly polarized light-emitting chiral rare earth phosphate nanomaterial, a preparation method and an application. Background technique [0002] Chirality is an asymmetric structural property that is widespread in nature. Chirality and chiral responses can occur in objects of any scale, ranging from molecular systems to macroscopic systems, such as chiral small molecules, amino acids, nanocrystals, shells, and nebulae. The special structure of chiral materials makes them have unique properties, including that when the material absorbs left and right circularly polarized light differently, it can be represented by circular dichroism; for the left and right circularly emitted by chiral luminescent materials There is also a difference in polarized light, which can be measured by circularly polarized fluorescence. Circularly polarized light has attracted much attention because of...

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Problems solved by technology

At present, there have been studies to achieve circularly polarized fluorescence properties by introducing chirality into rare earth materials, but the synthesis methods of these materials are difficult, and the color of circularly polarized light is single, which restricts the further development and practical application of chiral luminescent nanomaterials.

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