Luminescent particle, materials and products including same, and methods
A luminescent particle including a surface comprising glass that surrounds one or more particles of one or more light emissive materials is disclosed. Preferably the surface comprises a vitrified glass. Methods form making a luminescent particle including a surface comprising glass that surrounds one or more particles of one or more light emissive materials is also disclosed. Compositions and products including a luminescent particle are further disclosed.
1. A luminescent particle including a surface comprising glass that surrounds one or more particles of one or more light emissive nanomaterials; wherein the particles are encapsulated in a host material and the glass surrounds the encapsulated particles; and wherein the light emissive nanomaterials are present in an amount of 0.05 to 10 weight percent of the host material.
2. A luminescent particle in accordance with claim 1 wherein the luminescent particle comprises one or more particles of one or more light emissive nanomaterials distributed in glass.
3. A luminescent particle in accordance with claim 1 wherein at least one of the light emissive nanomaterials comprises quantum dots.
4. A luminescent particle in accordance with claim 1 wherein at least one of the light emissive nanomaterials comprises a nanophosphor.
5. A luminescent particle in accordance with claim 1 wherein the glass comprises a metal oxide.
6. A luminescent particle in accordance with claim 1 wherein the glass is derived from a fumed metal oxide.
7. A luminescent particle in accordance with claim 5 wherein the glass is formed by pyrolysis.
8. A luminescent particle in accordance with claim 1 wherein the glass comprises silica.
9. A luminescent particle in accordance with claim 1 wherein the glass is free or substantially free of graphitization by-products.
10. A luminescent particle in accordance with claim 1 wherein the particle has a smallest dimension in a range from about 5 nm to about 200 microns.
11. A luminescent particle in accordance with claim 1 wherein the particle includes two or more particles of one or more light emissive nanomaterials.
12. A luminescent particle in accordance with claim 11 wherein the glass is free or substantially free of graphitization by-products.
13. A light emitting device comprising a luminescent particle in accordance with claim 1 .