Light-emitting diode (LED) devices comprising nanocrystals
US-9677001-B2 · Jun 13, 2017 · US
Methods for encapsulating nanocrystals and resulting compositions
US10214686B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10214686-B2 |
| Application number | US-201715695220-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 5, 2017 |
| Priority date | Dec 30, 2008 |
| Publication date | Feb 26, 2019 |
| Grant date | Feb 26, 2019 |
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- Title
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- Abstract
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Abstract
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The present invention provides methods for hermetically sealing luminescent nanocrystals, as well as compositions and containers comprising hermetically sealed luminescent nanocrystals. By hermetically sealing the luminescent nanocrystals, enhanced lifetime and luminescence can be achieved.
First claim
Opening claim text (preview).
What is claimed is: 1. A microsphere comprising: a composition comprising: luminescent core-shell nanocrystals; and an inorganic layer covering each of the luminescent core-shell nanocrystals; and a barrier layer, disposed on the inorganic layer, configured to hermetically seal the composition, wherein the barrier layer consists essentially of SiO 2 , TiO 2 , or Al 2 O 3 . 2. The microsphere of claim 1 , wherein the luminescent core-shell nanocrystals are separated from each other by the inorganic layer. 3. The microsphere of claim 1 , wherein the luminescent core-shell nanocrystals are selected from the group consisting of CdSe/ZnS, CdSe/CdS, and InP/ZnS. 4. The microsphere of claim 1 , wherein the luminescent core-shell nanocrystals are between about 1-10 nm in size. 5. The microsphere of claim 1 , wherein the inorganic layer comprises silicon. 6. The microsphere of claim 1 , wherein the inorganic layer comprises silica or titania.
Assignees
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Classifications
with zinc or cadmium · CPC title
Silicon dioxide · CPC title
with zinc or cadmium · CPC title
- C09K11/025Primary
non-luminescent particle coatings or suspension media · CPC title
applied in non-semiconductor technology · CPC title
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Frequently asked questions
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- What does patent US10214686B2 cover?
- The present invention provides methods for hermetically sealing luminescent nanocrystals, as well as compositions and containers comprising hermetically sealed luminescent nanocrystals. By hermetically sealing the luminescent nanocrystals, enhanced lifetime and luminescence can be achieved.
- Who is the assignee on this patent?
- Nanosys 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 Tue Feb 26 2019 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).