Color stable red-emitting phosphors
US8906724B2 · kind B2 · utility
43Cited by
19References
29Claims
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Key dates
| Filing date | Jun 23, 2014 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jun 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphorAx[MFy]:Mn4+ Iwherein
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