A kind of preparation method of one-dimensional organic core-shell structure micron crystal material

Abstract

The invention provides a method for preparing a one-dimensional organic core-shell structure micron crystal material. The preparation steps are as follows: accurately weigh an oligostyrene-based organic molecule containing a pyridine group or a protonated pyridine group, add a good solvent and Ultrasound to obtain the stock solution of organic semiconductor molecules; add the stock solution of organic semiconductor molecules to a poor solvent at room temperature and shake well, let it stand and drop it on the substrate, and obtain one-dimensional organic single crystal microrods after the solvent evaporates to dryness. The one-dimensional single-crystal microrods of oligostyrene-based organic molecules containing pyridine groups are placed in acid gas fumigation, and the one-dimensional single-crystal microrods of oligopolystyrene-based organic molecules containing protonated pyridine groups are placed in alkali Organic crystal microrods with different core-shell structures were prepared by fumigation with reactive gases. The invention provides a new approach for realizing the controllable preparation of one-dimensional organic core-shell structure micro-crystals. Based on the micro-crystals, a continuously adjustable multicolor optical waveguide with coupled output light colors from green to yellow to red can be realized.

Description

technical field [0001] The invention belongs to the technical field of organic crystal photoelectric devices, in particular to a preparation method of a one-dimensional organic core-shell structure micron crystal. Background technique [0002] Due to the unique multifunctionality, tunability, stability, and biocompatibility, the core-shell structure has attracted great attention in basic research and potential applications, and has been widely used in the fields of catalysis, energy, biology, and optics. To date, a large number of related research efforts have focused on inorganic core-shell structured nanomaterials that can achieve excellent and multifunctional physicochemical properties. For example, Professor Peng Xiaogang increased the fluorescence quantum yield of the cadmium oxide core layer from several percentage points to about 50% by using the passivation protection effect of the shell layer on the core layer (Peng, X.; et, al. J. Am. Chem. Soc., 1997, 119 ,7019)...

AI Technical Summary

Problems solved by technology

However, due to the diversity of molecular self-assembly and the incompatibility of epitaxial growth materials, there are great challenges in the controllable preparation of organic core-shell micro-nanostructure materials.

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