High efficiency alkaline earth metal thiogallate-based phosphors
US7125501B2 · kind B2 · utility
10Cited by
26References
15Claims
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Key dates
| Filing date | Apr 13, 2004 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Apr 13, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/72
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided, among other things, is a strontium calcium thiogallate phosphor doped with divalent europium, and having the following formula:Sr1-xCaxGa2S4:yEu2+.zGa2S3,where x is 0.0001 to 1, y is a value defining sufficient Eu2+ to provide luminescent emission, and z is 0.0001 to 0.2 based on the mole amount of Sr1-xCaxGa2S4:yEu2+.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.