Alkaline and alkaline earth metal phosphate halides and phosphors
Compounds, phosphor materials and apparatus related to nacaphite family of materials are presented. Potassium and rubidium based nacaphite family compounds and phosphors designed by doping divalent rare earth elements in the sites of alkaline earth metals in the nacaphite material families are descried. An apparatus comprising the phosphors based on the nacaphite family materials are presented herein. The compounds presented is of formula A.sub.2B.sub.1-yR.sub.yPO.sub.4X where the elements A, B, R, X and suffix y are defined such that A is potassium, rubidium, or a combination of potassium and rubidium and B is calcium, strontium, barium, or a combination of any of calcium, strontium and barium. X is fluorine, chlorine, or a combination of fluorine and chlorine, R is europium, samarium, ytterbium, or a combination of any of europium, samarium, and ytterbium, and y ranges from 0 to about 0.1.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-06NT42934
- Assignee:
- General Electric Company (Niskayuna, NY)
- Patent Number(s):
- 8,308,982
- Application Number:
- 12/873,090
- OSTI ID:
- 1080425
- Country of Publication:
- United States
- Language:
- English
Combustion synthesis of Na 2 Sr(PO 4 )F:Dy 3+ white light emitting phosphor
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journal | January 2009 |
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