I-III-VI type quantum dots, light-emitting device using the same and fabricating methods thereof
US-10222546-B2 · Mar 5, 2019 · US
Lattice-mismatched core-shell quantum dots
US9303205B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9303205-B2 |
| Application number | US-201013509730-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 15, 2010 |
| Priority date | Nov 16, 2009 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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Abstract
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The disclosure relates to lattice-mismatched core-shell quantum dots (QDs). In certain embodiments, the lattice-mismatched core-shell QDs are used in methods for photovoltaic or photoconduction applications. They are also useful for multicolor molecular, cellular, and in vivo imaging.
First claim
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The invention claimed is: 1. A lattice-mismatched quantum dot comprising a core consisting of CdTe and a compressive shell over the surface of the core, wherein the core diameter is at least 1.8 nm and less than 4.0 nm and wherein the compressive shell is 2.5 or more monolayers of ZnS or ZnSe grown directly on the surface of the CdTe core. 2. The lattice-mismatched quantum dot of claim 1 further comprising a polymer over the compressive shell. 3. The lattice-mismatched quantum dot of claim 1 further comprising a biological material conjugated to the compressive shell. 4. The lattice-mismatched quantum dot of claim 3 , wherein the biological material is a nucleic acid, polypeptide, cell, antibody, epitope, protein, inhibitor, receptor, or receptor substrate. 5. A photovoltaic cell comprising the lattice-mismatched quantum dot of claim 1 . 6. A light-emitting diode comprising the lattice-mismatched quantum dot of claim 1 . 7. The lattice-mismatched quantum dot of claim 1 , wherein the compressive shell has three or more monolayers of ZnS or ZnSe.
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Classifications
Wavelength conversion means · CPC title
- C09K11/584Primary
with zinc or cadmium · CPC title
Use of particular materials as binders, particle coatings or suspension media therefor · CPC title
with zinc or cadmium · CPC title
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9303205B2 cover?
- The disclosure relates to lattice-mismatched core-shell quantum dots (QDs). In certain embodiments, the lattice-mismatched core-shell QDs are used in methods for photovoltaic or photoconduction applications. They are also useful for multicolor molecular, cellular, and in vivo imaging.
- Who is the assignee on this patent?
- Smith Andrew M, Nie Shuming, Univ Emory
- What technology area does this patent fall under?
- Primary CPC classification C09K11/584. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 05 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).