Multi-layer-coated quantum dot beads
First Claim
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1. A composition of matter comprising a plurality of beads, wherein each bead comprises:
- a primary matrix material;
a population of quantum dot nanoparticles incorporated into the primary matrix material; and
a multi-layer surface coating on each bead, the multi-layer surface coating comprising at least two barrier layers separated by at least one spacer layer.
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Abstract
Disclosed herein are coated beads made of a primary matrix material and containing a population of quantum dot nanoparticles. Each bead has a multi-layer surface coating. The layers can be two or more distinct surface coating materials. The surface coating materials may be inorganic materials and/or polymeric materials. A method of preparing such particles is also described. The coated beads are useful for composite materials for applications such as light-emitting devices.
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Citations
29 Claims
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1. A composition of matter comprising a plurality of beads, wherein each bead comprises:
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a primary matrix material; a population of quantum dot nanoparticles incorporated into the primary matrix material; and a multi-layer surface coating on each bead, the multi-layer surface coating comprising at least two barrier layers separated by at least one spacer layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification