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Quantum dot and method for producing the same
US2025388813A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025388813-A1 |
| Application number | US-202519314610-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 29, 2025 |
| Priority date | Oct 3, 2019 |
| Publication date | Dec 25, 2025 |
| Grant date | — |
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Abstract
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A quantum dot being a nanocrystal represented by AgInTe2 contains silver, indium, and tellurium, the quantum dot being a near-infrared absorbing particle
First claim
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1 . A quantum dot being a nanocrystal represented by AgInTe 2 containing silver, indium, and tellurium, the quantum dot being a near-infrared absorbing particle. 2 . The quantum dot according to claim 1 , wherein a fluorescence wavelength is within a range of a near-infrared region of 700 to 1500 nm. 3 . The quantum dot according to claim 1 , wherein a fluorescence full width at half maximum is 150 nm or less. 4 . The quantum dot according to claim 1 , wherein a fluorescence quantum yield is higher than 5%. 5 . The quantum dot according to claim 1 , wherein 90% or more of a plurality of particles are included within +30% of an average particle diameter, thereby being generated with a uniform particle diameter. 6 . The quantum dot according to claim 1 , wherein an average particle diameter is 1 nm or more and 15 nm or less. 7 . The quantum dot according to claim 1 , wherein a surface of the quantum dot is covered with a ligand. 8 . The quantum dot according to claim 7 , wherein the ligand is selected from at least one or two of phosphine-based, aliphatic thiol-based, aliphatic amine-based, and aliphatic carboxylic acid-based ligands.
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Classifications
Chalcogenides · CPC title
Chalcogenides · CPC title
- C09K11/025Primary
non-luminescent particle coatings or suspension media · CPC title
Nanometer sized, i.e. from 1-100 nanometer · CPC title
obtained by TEM, STEM, STM or AFM · CPC title
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- What does patent US2025388813A1 cover?
- A quantum dot being a nanocrystal represented by AgInTe2 contains silver, indium, and tellurium, the quantum dot being a near-infrared absorbing particle
- Who is the assignee on this patent?
- Toppan Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K11/025. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Dec 25 2025 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).