Fluorescent lighting with aluminum nitride phosphors
Abstract
A fluorescent lamp includes a glass envelope; at least two electrodes connected to the glass envelope; mercury vapor and an inert gas within the glass envelope; and a phosphor within the glass envelope, wherein the phosphor blend includes aluminum nitride. The phosphor may be a wurtzite (hexagonal) crystalline structure Al.sub.(1-x)M.sub.xN phosphor, where M may be drawn from beryllium, magnesium, calcium, strontium, barium, zinc, scandium, yttrium, lanthanum, cerium, praseodymium, europium, gadolinium, terbium, ytterbium, bismuth, manganese, silicon, germanium, tin, boron, or gallium is synthesized to include dopants to control its luminescence under ultraviolet excitation. The disclosed Al.sub.(1-x)M.sub.xN:Mn phosphor provides bright orange-red emission, comparable in efficiency and spectrum to that of the standard orange-red phosphor used in fluorescent lighting, Y.sub.2O.sub.3:Eu. Furthermore, it offers excellent lumen maintenance in a fluorescent lamp, and does not utilize "critical rare earths," minimizing sensitivity to fluctuating market prices for the rare earth elements.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1252202
- Patent Number(s):
- 9337010
- Application Number:
- 14/840,839
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA) General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Aug 31
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Cherepy, Nerine J., Payne, Stephen A., Seeley, Zachary M., and Srivastava, Alok M. Fluorescent lighting with aluminum nitride phosphors. United States: N. p., 2016.
Web.
Cherepy, Nerine J., Payne, Stephen A., Seeley, Zachary M., & Srivastava, Alok M. Fluorescent lighting with aluminum nitride phosphors. United States.
Cherepy, Nerine J., Payne, Stephen A., Seeley, Zachary M., and Srivastava, Alok M. Tue .
"Fluorescent lighting with aluminum nitride phosphors". United States. https://www.osti.gov/servlets/purl/1252202.
@article{osti_1252202,
title = {Fluorescent lighting with aluminum nitride phosphors},
author = {Cherepy, Nerine J. and Payne, Stephen A. and Seeley, Zachary M. and Srivastava, Alok M.},
abstractNote = {A fluorescent lamp includes a glass envelope; at least two electrodes connected to the glass envelope; mercury vapor and an inert gas within the glass envelope; and a phosphor within the glass envelope, wherein the phosphor blend includes aluminum nitride. The phosphor may be a wurtzite (hexagonal) crystalline structure Al.sub.(1-x)M.sub.xN phosphor, where M may be drawn from beryllium, magnesium, calcium, strontium, barium, zinc, scandium, yttrium, lanthanum, cerium, praseodymium, europium, gadolinium, terbium, ytterbium, bismuth, manganese, silicon, germanium, tin, boron, or gallium is synthesized to include dopants to control its luminescence under ultraviolet excitation. The disclosed Al.sub.(1-x)M.sub.xN:Mn phosphor provides bright orange-red emission, comparable in efficiency and spectrum to that of the standard orange-red phosphor used in fluorescent lighting, Y.sub.2O.sub.3:Eu. Furthermore, it offers excellent lumen maintenance in a fluorescent lamp, and does not utilize "critical rare earths," minimizing sensitivity to fluctuating market prices for the rare earth elements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {5}
}
Works referenced in this record:
Highly Efficient and Thermally Stable Blue-Emitting AlN:Eu 2+ Phosphor for Ultraviolet White Light-Emitting Diodes
journal, May 2009
- Inoue, Kazuo; Hirosaki, Naoto; Xie, Rong-Jun
- The Journal of Physical Chemistry C, Vol. 113, Issue 21
New Developments in the Field of Luminescent Materials for Lighting and Displays
journal, December 1998
- Jüstel, Thomas; Nikol, Hans; Ronda, Cees
- Angewandte Chemie International Edition, Vol. 37, Issue 22, p. 3084-3103
Surface characterization of chemically treated aluminium nitride powders
journal, January 1995
- Metselaar, R.; Reenis, R.; Chen, M.
- Journal of the European Ceramic Society, Vol. 15, Issue 11, p. 1079-1085
Low-temperature synthesis of AlN powder with multicomponent additive systems by carbothermal reduction–nitridation method
journal, June 2010
- Molisani, André Luiz; Yoshimura, Humberto Naoyuki
- Materials Research Bulletin, Vol. 45, Issue 6, p. 733-738
Characterization of AlN:Mn thin film phosphors prepared by metalorganic chemical vapor deposition
journal, January 2007
- Sato, Ayumu; Azumada, Kyoko; Atsumori, Toshiyuki
- Journal of Crystal Growth, Vol. 298, p. 379-382
Low-temperature metalorganic chemical vapor deposition of luminescent manganese-doped aluminum nitride films
journal, July 2005
- Sato, A.; Azumada, K.; Atsumori, T.
- Applied Physics Letters, Vol. 87, Issue 2
A novel and high brightness AlN:Mn2+ red phosphor for field emission displays
journal, January 2014
- Wang, Xiao-Jun; Xie, Rong-Jun; Dierre, Benjamin
- Dalton Transactions, Vol. 43, Issue 16
Luminescence Properties of Red Long-Lasting Phosphorescence Phosphor AlN:Mn 2+
journal, January 2013
- Zhang, Haoran; Zheng, Mingtao; Lei, Bingfu
- ECS Journal of Solid State Science and Technology, Vol. 2, Issue 7