Nanosphere encapsulated MoS2 micron hollow sphere structure semiconductor material and preparation method thereof

Abstract

The invention discloses a nanosphere encapsulated MoS2 micron hollow sphere structure semiconductor material. The nanospher encapsulated MoS2 micron hollow sphere structure semiconductor material comprises MoS2 micron-scale spheres and MoS2 nano scale spheres, wherein the nano scale spheres are uniformly dispersed and grown on the surface of the micron scale spheres; the MoS2 micron scale spheres are hollow and have thin spherical shells, the nano scale spheres are of an onion-like structure and are formed by nesting the spherical shells layer by layer, and the small part at the center of structure is hollow. The invention also discloses a preparation method of the nanosphere encapsulated MoS2 micron hollow sphere structure semiconductor material. A MoS2 spherical structure with two diameters can be prepared by only adopting a one-step hydro-thermal method. The preparation method of the nanosphere encapsulated MoS2 micron hollow sphere structure semiconductor material has the advantages of less product impurities and low preparation cost, and is simple to prepare. The nanosphere encapsulated MoS2 micron hollow sphere structure semiconductor material has great development potential in the fields of photocatalysis on industrial waste water and field emission.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic materials, semiconductor materials and devices, in particular to a MoS 2 MoS composed of micron-scale large spheres and nano-scale small spheres 2 Micro-nano-structure semiconductor materials and their preparation methods. Background technique [0002] MoS 2 It is a transition metal sulfide with a narrow band gap, and it is also a typical two-dimensional layered semiconductor material. Each layer is composed of a sandwich structure formed by a molybdenum atomic layer and two sulfur atomic layers. are held together by weak van der Waals forces. Due to this layered structure, MoS 2 The nanomaterials have unique electrical, optical, catalytic, lubricating and other properties, and are used in solid lubricants, lithium-ion battery electrodes, supercapacitors, gas sensors, photocatalysis and other fields. So, MoS 2 Nanomaterials have attracted the attention of many researchers. [0003] R...

AI Technical Summary

Problems solved by technology

However, most of the current preparation methods have harsh reaction conditions and high production costs, which are not suitable for large-scale industrial production.

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