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Phosphine precursor for preparing quantum dot and quantum dot prepared therefrom
US2022235077A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022235077-A1 |
| Application number | US-202217715470-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 7, 2022 |
| Priority date | May 18, 2017 |
| Publication date | Jul 28, 2022 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
The present invention relates to a phosphine precursor for the preparation of a quantum dot, and a quantum dot prepared therefrom. Using the phosphine precursor for the preparation of a quantum dot of the present invention, a quantum dot with improved luminous efficiency and higher luminous color purity can be provided.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for preparing a phosphine precursor represented by the following Chemical Formula 1, comprising the steps of: preparing a mixture of a primary or secondary phosphine compound, an ether solvent, and alkyl lithium; and adding a silyl halide compound to the mixture: in the Chemical Formula 1, Q 1 is Q 2 is Q 3 is wherein R 1 to R 9 are identical to or different from each other, and each independently, C1-20 linear or branched alkyl, C6-30 aryl, C7-30 alkylaryl, or C7-30 arylalkyl, provided that all Q 1 to Q 3 are not the same structure. 2 . The method for preparing a phosphine precursor according to claim 1 , wherein the ether solvent is tetrahydrofuran, and the alkyl lithium is butyl lithium. 3 . The method for preparing a phosphine precursor according to claim 1 , wherein R 1 to R 9 are each independently, C1-6 linear alkyl, C3-6 branched alkyl, or C6-12 aryl. 4 . The method for preparing a phosphine precursor according to claim 1 , wherein R 1 to R 9 are each independently, methyl, ethyl, n-propyl, iso-propyl, n-butyl, tert-butyl, iso-butyl, or phenyl. 5 . The method for preparing a phosphine precursor according to claim 1 , wherein the compound of the Chemical Formula 1 is selected form the group consisting of the following Structural Formulas: 6 . The method for preparing a phosphine precursor according to claim 1 , wherein the compound of the Chemical Formula 1 is selected form the group consisting of the following Structural Formulas:
Assignees
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Classifications
Energy storage using batteries · CPC title
Metal compounds according to more than one of main groups C07F1/00 - C07F17/00 · CPC title
containing phosphorus · CPC title
- C09K11/565Primary
with zinc cadmium · CPC title
- C09K11/02Primary
Use of particular materials as binders, particle coatings or suspension media therefor · CPC title
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- What does patent US2022235077A1 cover?
- The present invention relates to a phosphine precursor for the preparation of a quantum dot, and a quantum dot prepared therefrom. Using the phosphine precursor for the preparation of a quantum dot of the present invention, a quantum dot with improved luminous efficiency and higher luminous color purity can be provided.
- Who is the assignee on this patent?
- Sk Chemicals Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K11/565. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jul 28 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).