Sulfide highly-uniform microsphere with precisely controllable particle size and preparing method thereof

A sulfide, precise technology, applied in chemical instruments and methods, copper sulfide, lead sulfide, etc., can solve the problems of narrow particle size range, rough control of product particle size, etc., and achieve the effect of highly uniform particle size
CN109942017AActive Publication Date: 2019-06-28DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2019-06-28

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Abstract

The invention discloses a sulfide highly-uniform microsphere with the precisely controllable particle size and a preparing method thereof. The method includes the primary core growth step and the secondary layer-layer growth step on the basis of the concept of the core-shell-shell structure. In the primary growth step, through stable reaction conditions, the sulfide nanosphere with the stable particle size is obtained; in the subsequent step, the adding moments and amounts of metal salt and a sulfur source are controlled, and then the particle size of the nanospheres can be precisely controlled. According to the synthesis method, the sulfide microsphere with the target particle size can be obtained by precisely designing test steps through the preset target particle size; meanwhile, by means of the method, the controllable particle size range is obviously increased, and the controllable range is 100-1000 nm.
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Description

Technical field

[0001] The invention relates to a highly uniform sulfide microsphere with precise and controllable particle size and a preparation method thereof, and belongs to the field of photonic crystal material preparation. Background technique

[0002] Semiconductor materials are widely used in solar cells, lasers, photocatalysis and other fields. Among them, a variety of metal sulfides are the main types of semiconductor materials, such as ZnS, CdS, CuS, PbS, SnS, HgS, MnS, FeS, NiS, CoS, etc. . Further research found that semiconductor materials of the micro-nano size level exhibit many unique physical and chemical phenomena, such as quantum effects, nonlinear optical effects, etc. The above-mentioned phenomena mainly depend on the size, shape and structure of the material. Monodisperse microspheres eliminate the influence of shape on the properties of materials, and the particle size of the microspheres can be controlled to further study the influence of material size...

Claims

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