Zinc selenide fluorescent nano-particles and preparation method thereof

A technology of fluorescent nanoparticles and zinc selenide, which is applied in the field of preparation of zinc selenide fluorescent nanoparticles and zinc selenide fluorescent nanoparticles, can solve the problems of high comprehensive cost, flammability of organic solvents, expensive toxicity, etc., and achieve good fluorescence Effect of emission characteristics, low toxicity, uniform particle dispersion

Active Publication Date: 2015-02-11
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of flammable, explosive, expensive and highly toxic organic solvents, high overall cost and inconvenient operation in the existing preparation method of zinc selenide nanoparticles, and to provide a preparation method of zinc selenide nanoparticles method

Method used

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  • Zinc selenide fluorescent nano-particles and preparation method thereof
  • Zinc selenide fluorescent nano-particles and preparation method thereof

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Embodiment 1

[0031] The present embodiment provides a preparation method of zinc selenide fluorescent nanoparticles, which comprises the following steps:

[0032] Step 1): Preparation of Selenium Precursor

[0033] Make oleic acid and oleylamine into a mixed solution at a volume ratio of 1:1, add selenium powder to the above mixed solution, wherein the mass ratio of selenium powder to the mixed solution is 1:3, stir at 220°C to make the selenium Dissolve the powder, keep it warm for 10 minutes, and cool to 25°C to prepare the selenium precursor solution.

[0034] Step 2): Preparation of Zinc Precursor

[0035] Prepare oleic acid, octadecene, and benzophenone into a mixed solution, and under the protection of an argon atmosphere, heat the above mixed solution to 250°C, and dissolve diethyl zinc in the above mixed solution under stirring, Among them, the ratio of diethyl zinc, oleic acid, octadecene, and benzophenone is 1:0.25:5:2, and the zinc precursor solution is prepared by heat preser...

Embodiment 2

[0041] The present embodiment provides a preparation method of zinc selenide fluorescent nanoparticles, which comprises the following steps:

[0042] Step 1): Preparation of Selenium Precursor

[0043] Capric acid and oleylamine are formulated into a mixed solution at a volume ratio of 1:3, and the selenium powder is added to the above mixed solution, wherein the mass ratio of the selenium powder to the mixed solution is 1:1, and the selenium powder is stirred at 250° C. The powder was dissolved, kept warm for 5 minutes, and cooled to 2°C to obtain a selenium precursor solution.

[0044] Step 2): Preparation of Zinc Precursor

[0045] Capric acid, octadecene, and benzophenone are configured into a mixed solution, wherein the ratio of the three substances is 1:2:2. Under the protection of an argon atmosphere, the above mixed solution is heated to 230°C, Dissolve methyl zinc chloride in the above mixed solution under stirring, wherein the ratio of the amount of methyl zinc chl...

Embodiment 3

[0051] The present embodiment provides a preparation method of zinc selenide fluorescent nanoparticles, which comprises the following steps:

[0052] Step 1): Preparation of Selenium Precursor

[0053] Make eicosanic acid and oleylamine into a mixed solution at a volume ratio of 1:0.8, add selenium powder to the above mixed solution, wherein the mass ratio of selenium powder to the mixed solution is 1:3, and stir at 230°C Dissolve the selenium powder, keep it warm for 7 minutes, and cool to 30°C to prepare the selenium precursor solution.

[0054] Step 2): Preparation of Zinc Precursor

[0055] Prepare eicosanic acid, octadecene, and benzophenone into a mixed solution, and under the protection of an argon atmosphere, heat the above mixed solution to 240°C, and dissolve zinc oxide in the above mixed solution under stirring, Among them, zinc oxide, eicosanic acid, octadecene, and benzophenone are in the ratio of 1:3:8:5, and the zinc precursor solution is prepared by heat pres...

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Abstract

Provided are a method for preparing zinc selenide fluorescent nanoparticles, and the zinc selenide fluorescent nanoparticles prepared by the method, which fall within the technical field of luminescent materials, and can solve the problems of the organic solvent being flammable, explosive, expensive and having a relatively high toxicity, expensive comprehensive costs, and inconvenient operation etc. in the existing preparation method for zinc selenide nanoparticles. The method for preparing the zinc selenide fluorescent nanoparticles comprises the steps of preparing a selenium precursor solution and a zinc precursor solution, and preparing zinc selenide fluorescent nanoparticles that are easy to nucleate, uniformly nucleated, and will not easily agglomerate by selecting a suitable ligand at a relatively low reaction temperature.

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and in particular relates to a method for preparing zinc selenide fluorescent nanoparticles and the zinc selenide fluorescent nanoparticles prepared by the method. Background technique [0002] Nanoparticles with a size between 1-10nm are also called quantum dots (quantum dots), which are composed of 10 3 -10 5 An "artificial molecule" in which atoms are combined. Theoretical analysis shows that when the semiconductor material gradually decreases from the bulk phase to a certain critical size, the characteristic size of the material is comparable to or smaller than the De Broglie wavelength or the mean free path of the electron in three dimensions, and the electron is in the Motion in the material is restricted in three dimensions, meaning that the energy of the electrons is quantized in all three dimensions. Nanoparticles have unique quantum size effects and surface effects beca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B19/04C09K11/88
CPCC01P2002/84C09K11/883C01P2004/64C01B19/007
Inventor 王春秦锋王辉张一三
Owner HEFEI BOE OPTOELECTRONICS TECH
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