One-step-method preparation technology of high-crystallinity rhenium disulfide circular nanocrystal

Abstract

Disclosed is a one-step-method preparation technology of a high-crystallinity rhenium disulfide circular nanocrystal. The technology is characterized in that the ReS2 circular nanocrystal with good dispersibility, a small size, high crystallinity and fluorescence characteristics is prepared by means of a one-step method. For the current situations that there are few current researches on the new two-dimensional material rhenium disulfide nanocrystal, the requirement for process equipment is high, and the operation procedures are complicated, the ReS2 circular nanocrystal is prepared by means of the one-step method, the product has absorption peaks of 288 nm and 376 nm in an ultraviolet-visible light spectrum, and it is indicated according to an absorption value that the band gap of the product is adjustable; a high-resolution transmission electron micrograph shows that the lattice spacing of the ReS2 circular nanocrystal is 0.273 nm and the average particle diameter of 2.7 nm, which indicates that the one-step-method preparation technology of the ReS2 circular nanocrystal is efficient and feasible; meanwhile, an image also indicates that the ReS2 circular nanocrystal prepared by means of the one-step method has high crystallinity.

Description

technical field [0001] The invention relates to a one-step preparation technology of rhenium disulfide circular nanocrystals, a highly crystalline two-dimensional material, in particular to the preparation of size-controllable rhenium disulfide circular nanocrystals with a simple technique, which promotes its use in materials, energy, The development and application of biology and medicine. Background technique [0002] As an important member of the family of two-dimensional atomic crystal materials, rhenium disulfide (ReS 2 ) has a structure and properties different from traditional two-dimensional materials. The low lattice symmetry endows it with unique two-dimensional in-plane anisotropic optical and electrical properties. It has great potential in field effect transistors, photodetectors and new concept devices. great application value. In addition, ReS 2 Having semiconducting properties and a bandgap suitable for device applications make them promising complements t...

AI Technical Summary

Problems solved by technology

Nevertheless, strict control of ReS 2 Nanocrystal thickness and lateral dimensions to achieve ReS 2 The controllable preparation of circular nanocrystals still faces great challenges

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