A kind of organic solid fluorescent material assembled by supramolecular and its preparation method

Abstract

The invention discloses an organic solid fluorescent material assembled by super-molecules. The organic solid fluorescent material is mainly prepared by the following components in parts by weight: 15-20 parts of a hinged 14-membered melon ring solution, 1-3 parts of an alkaline yellow solution and 1000-1200 parts of a metal ion solution. A preparation method of the organic solid fluorescent material comprises the following preparation steps: mixing the hinged 14-membered melon ring solution and the alkaline yellow solution and adding 5 milliliters of re-distilled water for stirring to obtain a product A, wherein the stirring time is 50-60 seconds; adding the metal ion solution into the product A, stirring for 20-40 seconds, generating a precipitate, centrifuging, collecting the generated precipitate and drying for 50-60 minutes under the infrared light to obtain. The preparation method is simple to prepare and strong in controllability and has the advantages that non-radiative decay cannot be caused under strong interaction between the molecules in a solid state, the luminous efficiency is high, the duration is long, and fluorescence quenching is not generated.

Description

technical field [0001] The invention relates to a preparation method of a solid fluorescent material, in particular to an organic solid fluorescent material assembled by supermolecules and a preparation method thereof. Background technique [0002] Organic solid fluorescent materials are widely used in high-tech fields such as communications, satellites, optical calculators, and biomolecular probes. Compared with inorganic solid luminescent materials, organic solid luminescent materials have the characteristics of good luminous efficiency, large Stokes shift, strong modifiability, wide emission spectrum, and large absorption and emission cross-sectional areas. However, most fluorescent materials have strong fluorescence in solution. In the solid state, the strong interaction between molecules leads to non-radiative attenuation, which leads to a rapid decline in luminous efficiency. The luminous efficiency is low and the duration is short, resulting in aggregation fluorescenc...

AI Technical Summary

Problems solved by technology

However, most fluorescent materials have strong fluorescence in solution. In the solid state, due to the strong interaction between molecules, non-radiative attenuation results in a rapid decline in luminous efficiency. The luminous efficiency is low and the duration is short, resulting in aggregation fluorescence quenching.

However, in practical applications, the luminescent material needs to be made into a thin film or solid, and the fluorescence quenching in the solid state limits the application of fluorescent materials.

Therefore, the existing organic solid fluorescent materials have the disadvantages of non-radiative attenuation due to strong interaction between molecules in the solid state, low luminous efficiency, short duration, and aggregation fluorescence quenching.

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