Two-dimensional cadmium hydroxide material, preparation method, growth template and application

Abstract

The invention relates to a two-dimensional cadmium hydroxide material, a preparation method, a growth template and application. The two-dimensional cadmium hydroxide material is a cadmium hydroxide-fatty acid two-dimensional double-layer film, and the thickness of the film is smaller than or equal to 5 nm. The preparation method comprises the following steps: an organic cadmium salt solution is prepared; a two-phase system solvent is provided, the upper layer of the two-phase system solvent is a non-polar solvent layer, and the lower layer of the two-phase system solvent is a polar solvent layer; the organic cadmium salt solution is gathered at the interface of the non-polar solvent and the polar solvent; the non-polar solvent layer located on the upper layer is evaporated, so that the organic cadmium salt is gathered into a film along with the volume of the non-polar solvent, and floats on the liquid surface of the polar solvent layer; and the alkaline polar solvent is injected into the polar solvent at the temperature of less than 150 DEG C to generate a two-dimensional cadmium hydroxide double-layer film. The cadmium hydroxide-fatty acid two-dimensional double-layer film can be applied to growth templates for growing two-dimensional cadmium sulfide and cadmium selenide and electronic devices; and the preparation method is simple, efficient and easy for industrial production.

Description

technical field [0001] The invention relates to a two-dimensional cadmium hydroxide material, especially a two-dimensional cadmium hydroxide material, a preparation method, a growth template and application. Background technique [0002] Since the discovery of graphene, two-dimensional materials have attracted much attention due to their unique electrical, optical, magnetic and mechanical properties and their potential applications in the construction of nanodevices. Exploring large-area, single-layer or few-layer two-dimensional materials has been a research hotspot. Relevant researchers and technicians have made many attempts in the preparation of two-dimensional materials, among which chemical vapor deposition (CVD), mechanical exfoliation, hydrothermal method, etc. are commonly used two-dimensional material preparation methods. However, mechanical exfoliation and hydrothermal methods cannot prepare large-area two-dimensional materials; and although chemical vapor deposi...

AI Technical Summary

Problems solved by technology

The prepared self-supporting hydroxide film of the above scheme is 150∼800nm, which cannot meet the requirements of electronic devices and sensors

Images