Nanoscale phosphor particles with high quantum efficiency and method for synthesizing the same
US8137588B2 · kind B2 · utility
3Cited by
5References
19Claims
0Family size
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Key dates
| Filing date | Mar 11, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Mar 11, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described herein are batches of nanoscale phosphor particles having an average particle size of less than about 200 nm and an average internal quantum efficiency of at least 40%. The batches of nanoscale phosphor particles can be substantially free of impurities. Also described herein are methods of manufacturing the nanoscale phosphor particles by passing phosphor particles through a reactive field to thereby dissociate them into elements and then synthesizing nanoscale phosphor particles by nucleating the elements and quenching the resulting particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.