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Semiconductor nanoparticle-based materials for use in light emitting diodes, optoelectronic displays and the like
US9082941B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9082941-B2 |
| Application number | US-201213485292-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2012 |
| Priority date | May 31, 2011 |
| Publication date | Jul 14, 2015 |
| Grant date | Jul 14, 2015 |
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- Title
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Abstract
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A formulation incorporates nanoparticles, particularly quantum dot (QD) nanoparticles, into an optically clear medium (resin) to be used as a phosphor material in lighting and display applications, and as a down converting phosphor material in LEDs (light emitting diodes). The resin is compatible with QDs to allow high performance and stability of QD-based LEDs, lighting and display applications.
First claim
Opening claim text (preview).
The invention claimed is: 1. A formulation for use in the fabrication of a light emitting device, said formulation comprising or consisting essentially of: a population of semiconductor nanoparticles comprising ions from groups 13 and 15 of the Periodic Table, said nanoparticles being incorporated into an optically transparent poly(meth)acrylate encapsulation medium derived from laurylmethacrylate monomer and a trivalent crosslinking compound. 2. A formulation according to claim 1 , wherein said trivalent crosslinking compound is a trivalent crosslinking compound, such as trimethylolpropanetrimethacrylate. 3. A formulation according to claim 1 , wherein said monomer and crosslinking compound are reacted in the presence of a photoinitiator. 4. A formulation according to claim 1 , wherein said poly(meth)acrylate is polylaurylmethacrylate. 5. A formulation according to claim 1 , wherein said semiconductor nanoparticles contain one or more semiconductor materials selected from the group consisting of InP, InAs, InSb, AlP, AlS, AlAs, AlSb, GaN, GaP, GaAs, GaSb, and combinations thereof. 6. A formulation according to claim 1 , wherein said population of semiconductor nanoparticles is incorporated into a plurality of discrete microbeads, said nanoparticle-containing microbeads being embedded within said encapsulation medium. 7. A formulation for use in the fabrication of a light emitting device, said formulation comprising: a population of semiconductor nanoparticles incorporated into an optically transparent polymeric encapsulation medium derived from a laurylmethacrylate monomer and a multivalent crosslinking compound reacted in the presence of a photoinitiator, wherein the nanoparticles comprise ions selected from groups 13 and 15 of the Periodic Table. 8. A formulation according to claim 7 , wherein said multivalent crosslinking compound is a trivalent crosslinking compound.
Assignees
Inventors
Classifications
between a chip and a stacked lead frame, conducting package substrate or heat sink · CPC title
non-luminescent particle coatings or suspension media · CPC title
containing phosphorus · CPC title
with zinc or cadmium · CPC title
with zinc cadmium · CPC title
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Frequently asked questions
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- What does patent US9082941B2 cover?
- A formulation incorporates nanoparticles, particularly quantum dot (QD) nanoparticles, into an optically clear medium (resin) to be used as a phosphor material in lighting and display applications, and as a down converting phosphor material in LEDs (light emitting diodes). The resin is compatible with QDs to allow high performance and stability of QD-based LEDs, lighting and display applications.
- Who is the assignee on this patent?
- Naasani Imad, Pang Hao, Daniels Siobhan S, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C09K11/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 14 2015 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).