Quantum-splitting oxide-based phosphors and method of producing the same
Abstract
Strontium, calcium, strontium calcium, strontium calcium magnesium, calcium magnesium aluminates, and strontium borates activated with Pr.sup.3+ exhibit characteristics of quantum-splitting phosphors under VUV excitation. A large emission peak at about 405 nm under VUV excitation is used conveniently to identify quantum-splitting phosphors. Improvements may be achieved with addition of fluorides or boric acid as a flux during the preparation of the phosphors. It is also possible to predict improvement in quantum efficiency by observing the ratio of emission intensities at about 480 nm and about 610 nm.
- Inventors:
- Issue Date:
- Research Org.:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174471
- Patent Number(s):
- 6613248
- Application Number:
- 09/681,670
- Assignee:
- General Electric Company (Niskayuna, NY)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- FC26-99FT40632
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Setlur, Anant Achyut, and Srivastava, Alok Mani. Quantum-splitting oxide-based phosphors and method of producing the same. United States: N. p., 2003.
Web.
Setlur, Anant Achyut, & Srivastava, Alok Mani. Quantum-splitting oxide-based phosphors and method of producing the same. United States.
Setlur, Anant Achyut, and Srivastava, Alok Mani. Tue .
"Quantum-splitting oxide-based phosphors and method of producing the same". United States. https://www.osti.gov/servlets/purl/1174471.
@article{osti_1174471,
title = {Quantum-splitting oxide-based phosphors and method of producing the same},
author = {Setlur, Anant Achyut and Srivastava, Alok Mani},
abstractNote = {Strontium, calcium, strontium calcium, strontium calcium magnesium, calcium magnesium aluminates, and strontium borates activated with Pr.sup.3+ exhibit characteristics of quantum-splitting phosphors under VUV excitation. A large emission peak at about 405 nm under VUV excitation is used conveniently to identify quantum-splitting phosphors. Improvements may be achieved with addition of fluorides or boric acid as a flux during the preparation of the phosphors. It is also possible to predict improvement in quantum efficiency by observing the ratio of emission intensities at about 480 nm and about 610 nm.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 02 00:00:00 EDT 2003},
month = {Tue Sep 02 00:00:00 EDT 2003}
}
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Works referenced in this record:
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journal, January 1976
- Pappalardo, R.
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Two photon luminescence with ultraviolet excitation of trivalent praseodymium
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- Sommerdijk, J. L.; Bril, A.; de Jager, A. W.
- Journal of Luminescence, Vol. 8, Issue 4
Cascade fluorescent decay in Pr3+-doped fluorides: Achievement of a quantum yield greater than unity for emission of visible light
journal, February 1974
- Piper, W. W.; DeLuca, J. A.; Ham, F. S.
- Journal of Luminescence, Vol. 8, Issue 4