Preparation method of monodisperse antimony sulfide quantum dot

A technology of antimony sulfide and quantum dots, which is applied in antimony sulfide, chemical instruments and methods, inorganic chemistry, etc., can solve compatibility problems, achieve simple equipment, low synthesis cost, and good stability

Active Publication Date: 2018-03-06
重庆复源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the application process of antimony sulfide quantum dots, it cannot be compatible with low-cost, large-area production technologies, such as inkjet printing, screen printing, roll-to-roll production, etc.

Method used

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  • Preparation method of monodisperse antimony sulfide quantum dot
  • Preparation method of monodisperse antimony sulfide quantum dot
  • Preparation method of monodisperse antimony sulfide quantum dot

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A preparation method of monodisperse antimony sulfide quantum dots, comprising the following steps:

[0029] A, thioacetamide is dissolved in ethylene glycol methyl ether, is configured into the solution of 0.15mol / L;

[0030] B, antimony acetate is dissolved in glacial acetic acid, is configured into the solution of 0.25mol / L;

[0031] C. Heat the magnetic stirring constant temperature oil bath to 120°C and then keep it warm;

[0032] D. Take 30ml of the thioacetamide solution described in step A and transfer it to a round bottom flask, add 0.6ml diethanolamine, 0.6mmol ethylenediaminetetraacetic acid, 0.5mmol sodium lauryl sulfate and 0.5mmol cetyl tris Methyl ammonium bromide, the round bottom flask is placed in a magnetic stirring constant temperature oil bath;

[0033] E. Add a Ф6×25mm stirring bar to the mixture prepared in step D, seal the mouth of the round bottom flask with a rubber stopper, and perform magnetic stirring at a speed of 650r / min, and form a uni...

Embodiment 2

[0038] The difference between embodiment 2 and embodiment 1 is:

[0039] In step C, heat the magnetic stirring constant temperature oil bath to 60°C and then keep it warm;

[0040] After opening the rubber stopper on the mouth of the round-bottomed flask in step F, add 0.5ml of antimony acetate solution prepared according to the method in step B, and continue stirring for 15 minutes. After the solution is bright yellow, quickly take the round-bottomed flask out of the oil bath, Quickly cool in a pre-prepared ice-water bath.

Embodiment 3

[0042] The difference between embodiment 3 and embodiment 1 is:

[0043] In step C, heat the magnetic stirring constant temperature oil bath to 150°C and then keep it warm;

[0044]After opening the rubber stopper on the mouth of the round-bottomed flask in step F, add 0.5ml of antimony acetate solution prepared according to the method in step B, and continue stirring for 25 minutes. After the solution is bright yellow, the round-bottomed flask is quickly taken out from the oil bath, Quickly cool in a pre-prepared ice-water bath.

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Abstract

The invention belongs to the technical field of preparation of a compound semiconductor nanometer material and relates to a preparation method of a monodisperse antimony sulfide quantum dot. The synthesis route is conducted according to the following mode: dissolving thioacetamide and antimony acetate into an organic solvent separately, heating a thioacetamide solution, rapidly cooling an antimonyacetate solution, performing rapid reaction on the thioacetamide solution and the antimony acetate solution to synthesize and obtain an antimony sulfide quantum dot and performing sealing preservation. The prepared monodisperse antimony sulfide quantum dot has high dispersibility, can form stable dispersing liquid in the common solvents such as deionized water, ethanol, ethylene glycol monomethylether and dichloromethane, so the antimony sulfide quantum dot has compatibility with the low-cost technologies of ink-jet printing, spin-coating and spray-coating, and realizes device application.

Description

technical field [0001] The invention belongs to the technical field of compound semiconductor nanomaterial preparation, and relates to a preparation method of monodisperse antimony sulfide quantum dots. Background technique [0002] The current energy problem is becoming more and more urgent, and solar energy has great development potential as a clean energy source. Reasonable use of solar energy can effectively alleviate energy problems, and solar cells, as a typical representative of rational use of solar energy, have been developed for many years. After several generations, great breakthroughs have been made. Currently, the rapidly developing third-generation solar cells mainly include dye-sensitized solar cells and organic cells. The photoelectric conversion efficiency of organic cells has exceeded 10%, and the cell structure is simple and energy-efficient. Making thin films by roll-to-roll has great industrial prospects, but organic batteries are currently very limited ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G30/00B82Y40/00
CPCB82Y40/00C01G30/008C01P2002/72C01P2004/04C01P2004/64
Inventor 闫雪莲孟祥胡荣李璐程江
Owner 重庆复源新材料科技有限公司
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