Semiconductor nanoparticle-based materials
First Claim
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1. A composition comprising:
- a plurality of primary particles, each primary particle comprising a population of semiconductor nanoparticles dispersed in a primary matrix material;
a first surface coating material disposed upon the surface of the primary particles, wherein the surface coating material is a different material than the primary matrix material;
wherein the primary particles are dispersed within secondary particles comprising a secondary matrix material selected from the group consisting of a polymer, a resin, a monolith, a glass, a sol gel, an epoxy, a silicone, and a (meth)acrylate; and
wherein the secondary particles comprises a separate layer of a second surface coating material that provides the secondary particle with a protective barrier to prevent the passage or diffusion of potentially deleterious species from the external environment through the secondary matrix material to the primary matrix material.
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Abstract
In various embodiments, the present invention relates to a plurality of coated primary particles, each primary particle including a primary matrix material and containing a population of semiconductor nanoparticles, wherein each primary particle is provided with a separate layer of a surface coating material. Various methods of preparing such particles are described. Composite materials and light-emitting devices incorporating such primary particles are also described.
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Citations
19 Claims
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1. A composition comprising:
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a plurality of primary particles, each primary particle comprising a population of semiconductor nanoparticles dispersed in a primary matrix material; a first surface coating material disposed upon the surface of the primary particles, wherein the surface coating material is a different material than the primary matrix material; wherein the primary particles are dispersed within secondary particles comprising a secondary matrix material selected from the group consisting of a polymer, a resin, a monolith, a glass, a sol gel, an epoxy, a silicone, and a (meth)acrylate; and wherein the secondary particles comprises a separate layer of a second surface coating material that provides the secondary particle with a protective barrier to prevent the passage or diffusion of potentially deleterious species from the external environment through the secondary matrix material to the primary matrix material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification