Phosphors for LED lamps
Abstract
A phosphor, a phosphor blend including the phosphor, a phosphor prepared by a process, and a lighting apparatus including the phosphor blend are disclosed. The phosphor has the formula (Ca.sub.1-p-qCe.sub.pK.sub.q).sub.xSc.sub.y(Si.sub.1-rGa.sub.r).sub.zO.su- b.12+.delta. or derived from a process followed using disclosed amounts of reactants. In the formula, (0<p.ltoreq.0.06); 0.ltoreq.q.ltoreq.0.06; 0.ltoreq.r.ltoreq.0.2; and -0.1.ltoreq..delta..ltoreq.0.4. In one embodiment, 3<x.ltoreq.3.1; 2.ltoreq.y.ltoreq.2.15; and 3.ltoreq.z.ltoreq.3.2. Similarly, in another embodiment, 3.ltoreq.x.ltoreq.3.1; 2<y.ltoreq.2.15; and 2.8.ltoreq.z.ltoreq.3.2.
- Inventors:
- Issue Date:
- Research Org.:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1093223
- Patent Number(s):
- 8506104
- Application Number:
- 13/432,461
- Assignee:
- General Electric Company (Niskayuna, NY)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- EE003251
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Murphy, James Edward, Manepalli, Satya Kishore, and Kumar, Prasanth Nammalwar. Phosphors for LED lamps. United States: N. p., 2013.
Web.
Murphy, James Edward, Manepalli, Satya Kishore, & Kumar, Prasanth Nammalwar. Phosphors for LED lamps. United States.
Murphy, James Edward, Manepalli, Satya Kishore, and Kumar, Prasanth Nammalwar. Tue .
"Phosphors for LED lamps". United States. https://www.osti.gov/servlets/purl/1093223.
@article{osti_1093223,
title = {Phosphors for LED lamps},
author = {Murphy, James Edward and Manepalli, Satya Kishore and Kumar, Prasanth Nammalwar},
abstractNote = {A phosphor, a phosphor blend including the phosphor, a phosphor prepared by a process, and a lighting apparatus including the phosphor blend are disclosed. The phosphor has the formula (Ca.sub.1-p-qCe.sub.pK.sub.q).sub.xSc.sub.y(Si.sub.1-rGa.sub.r).sub.zO.su- b.12+.delta. or derived from a process followed using disclosed amounts of reactants. In the formula, (0<p.ltoreq.0.06); 0.ltoreq.q.ltoreq.0.06; 0.ltoreq.r.ltoreq.0.2; and -0.1.ltoreq..delta..ltoreq.0.4. In one embodiment, 3<x.ltoreq.3.1; 2.ltoreq.y.ltoreq.2.15; and 3.ltoreq.z.ltoreq.3.2. Similarly, in another embodiment, 3.ltoreq.x.ltoreq.3.1; 2<y.ltoreq.2.15; and 2.8.ltoreq.z.ltoreq.3.2.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {8}
}
Works referenced in this record:
Red line emitting phosphors for use in led applications
patent, January 2010
- Radkov, Emil; Setlur, Anant Achyut; Srivastava, Alok Mani
- US Patent Document 7,648,649
Crystal Chemistry and Luminescence of Ce3+-Doped Lu2CaMg2(Si,Ge)3O12 and Its Use in LED Based Lighting
journal, July 2006
- Setlur, Anant A.; Heward, William J.; Gao, Yan
- Chemistry of Materials, Vol. 18, Issue 14, p. 3314-3322
Phosphor, light emitting device using phosphor, and display and lighting system using light emitting device
patent, March 2007
- Shimomura, Yasuo; Kijima, Naoto
- US Patent Document 7,189,340
Garnet phosphor materials having enhanced spectral characteristics
patent, August 2006
- Setlur, Anant Achyut; Srivastava, Alok Mani; Comanzo, Holly Ann
- US Patent Document 7,094,362
Fluorescent material, fluorescent device using the same, and image display device and lighting equipment
patent, May 2010
- Shimomura, Yasuo; Kijima, Naoto; Kurushima, Tomoyuki
- US Patent Document 7,713,441
Organic compounds for adjusting phosphor chromaticity
patent, September 2011
- Bukesov, Sergey A.; Hajjar, Roger A.
- US Patent Document 8,013,506
Carbonitride Based Phosphors and Light Emitting Devices Using the Same
patent-application, November 2011
- Li, Yuanqiang; Tian, Yongchi; Romanelli, Michael Dennis
- US Patent Application 12/839365; 20110279016
Red-deficiency compensating phosphor light emitting device
patent, January 2004
- Mueller-Mach, Regina B.; Mueller, Gerd O.; Jüestel, Tomas
- US Patent Document 6,680,569
Novel $\hbox{Eu}^{{2+}}$-Activated Glass Ceramics Precipitated With Green and Red Phosphors for High-Power White LED
journal, July 2009
- Nakanishi, T.; Tanabe, S.
- IEEE Journal of Selected Topics in Quantum Electronics, Vol. 15, Issue 4
Phosphor, light emitting device using phosphor, and display and lighting system using light emitting device
patent, September 2010
- Shimomura, Yasuo; Kijima, Naoto
- US Patent Document 7,790,058