Red line emitting phosphor materials for use in LED applications
US7497973B2 · kind B2 · utility
111Cited by
76References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Oct 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8515
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Light emitting devices including a light source and a phosphor material including a complex fluoride phosphor activated with Mn4+ which may comprise at least one of (1) A2[MF6]:Mn4+, where A is selected from Li, Na, K, Rb, Cs, NH4, and combinations thereof; and where M is selected from Ge, Si, Sn, Ti, Zr, and combinations thereof; (2) E[MF6]:Mn4+, where E is selected from Mg, Ca, Sr, Ba, Zn, and combinations thereof; and where M is selected from Ge, Si, Sn, Ti, Zr, and combinations thereof; (3) Ba0.65Zr0.35F2.70:Mn4+; or (4) A3[ZrF7]:Mn4+ where A is selected from Li, Na, K, Rb, Cs, NH4, and combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.