Particles with quantum dots and method of making the same
First Claim
1. A particle comprising a composite core and a continuous inorganic coating covering the composite core, wherein the composite core comprises a continuous non-metallic inorganic matrix, ligands, and quantum dots, wherein the matrix comprises up to 40 volume percent, wherein the coating has an average thickness up to 5 micrometers, and wherein at least 60 volume percent of the particle is collectively the ligands and the quantum dots, based on the total volume of the composite core.
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Accused Products
Abstract
A marker composition and a package using same. The marker composition can include retroreflective particles and a dispersion medium, the blending ratio of the retroreflective particles being from 50 to 90 mass % on the basis of the total marker composition.
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Citations
15 Claims
- 1. A particle comprising a composite core and a continuous inorganic coating covering the composite core, wherein the composite core comprises a continuous non-metallic inorganic matrix, ligands, and quantum dots, wherein the matrix comprises up to 40 volume percent, wherein the coating has an average thickness up to 5 micrometers, and wherein at least 60 volume percent of the particle is collectively the ligands and the quantum dots, based on the total volume of the composite core.
- 8. A particle comprising a composite core and a continuous inorganic coating covering the composite core, wherein the composite core comprises a continuous non-metallic inorganic matrix, ligands, and quantum dots, wherein the matrix comprises up to 40 volume percent, wherein the coating has an average thickness up to 5 micrometers, wherein the composite core further comprises a liquid, and wherein greater than 60 volume percent of the particle is collectively the liquid, the ligands, and the quantum dots, based on the total volume of the composite core.
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10. A particle comprising a composite core and a continuous inorganic coating covering the composite core, wherein the composite core comprises a continuous non-metallic inorganic matrix, ligands, and quantum dots, wherein the matrix comprises up to 40 volume percent, wherein the coating has an average thickness up to 5 micrometers, and wherein the particle has air stable light emission properties.
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11. A method of making a particle comprising a composite core and a continuous inorganic coating covering the composite core, wherein the composite core comprises a continuous non-metallic inorganic matrix, ligands, and quantum dots, wherein the matrix comprises up to 40 volume percent, wherein the coating has an average thickness up to 5 micrometers, the method comprising:
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providing a liquid having quantum dots dispersed therein; infiltrating the liquid having the quantum dots into a porous inorganic particle; and encapsulating the infiltrated particle with a continuous inorganic coating to provide the particle. - View Dependent Claims (12, 13, 14, 15)
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Specification