Method of producing semiconductor nanoparticle
US-2019362968-A1 · Nov 28, 2019 · US
Method for producing quantum dots
US12577461B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12577461-B2 |
| Application number | US-202118008707-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 6, 2021 |
| Priority date | Jun 15, 2020 |
| Publication date | Mar 17, 2026 |
| Grant date | Mar 17, 2026 |
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Abstract
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The present invention is a method for producing perovskite type quantum dots, wherein, using a plurality of precursor solutions each containing a different element, each of the plurality of precursor solutions is heated and sprayed as an aerosol of the precursor solution, and the plurality of aerosols are collided to cause a gas phase reaction, dropping in a solvent to synthesize core particles containing the different elements. This provides a method for producing quantum dots that enables control of the particle size and yields nanoparticles with a uniform particle size even in large-scale synthesis.
First claim
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The invention claimed is: 1 . A method for producing perovskite type quantum dots, wherein, using a plurality of precursor solutions each containing a different element, each of the plurality of precursor solutions is heated and sprayed as an aerosol of the precursor solution, and the plurality of aerosols are collided to cause a gas phase reaction, dropping in a solvent to terminate the gas phase reaction and synthesize core particles containing the different elements, wherein a temperature of the solvent is −10° C. to 20° C. and wherein the temperature of the solvent is lower than a temperature of the precursor solution. 2 . The method for producing quantum dots according to claim 1 , wherein the spraying is performed using a single fluid nozzle or a two fluid nozzle. 3 . The method for producing quantum dots according to claim 1 , wherein the spraying is performed by an ultrasonic method.
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Classifications
Nanometer sized, i.e. from 1-100 nanometer · CPC title
Halides · CPC title
Manufacture or treatment of nanostructures · CPC title
Nanooptics, e.g. quantum optics or photonic crystals · CPC title
perovskite-type (ABO3) · CPC title
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- What does patent US12577461B2 cover?
- The present invention is a method for producing perovskite type quantum dots, wherein, using a plurality of precursor solutions each containing a different element, each of the plurality of precursor solutions is heated and sprayed as an aerosol of the precursor solution, and the plurality of aerosols are collided to cause a gas phase reaction, dropping in a solvent to synthesize core particles…
- Who is the assignee on this patent?
- Shinetsu Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C09K11/7719. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 17 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).