Efficient, size-selected green-emitting phosphors
US7018565B2 · kind B2 · utility
13Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2004 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Mar 3, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7731
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided among other things is a method of forming a phosphor of the formulaSrGa2S4:Eu:xGa2S3 (I)wherein x is 0.0001 to 0.2, wherein a minor part of the europium component may be substituted with praseodymium in an efficiency enhancing amount, and wherein the median grain size of the phosphor composition is from 2 to 12 microns, the method comprising:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.