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Phosphors with long-persistent green phosphorescenceThis invention relates to phosphors including long-persistence green phosphors. Phosphors of the invention are represented by the general formula: M.sub.k Al.sub.2 O.sub.4 :2xEu.sup.2+,2yR.sup.3+ wherein k-1-2x-2y, x is a number ranging from about 0.0001 to about 0.05, y is a number ranging from about x to about 3x, M is an alkaline earth metal, and R.sup.3+ is one or more trivalent metal ions. Phosphors of this invention include powders, ceramics, single crystals and single crystal fibers. A method of manufacturing improved phosphors and a method of manufacturing single crystal phosphors are also provided.
Document ID
20080004883
Acquisition Source
Goddard Space Flight Center
Document Type
Other - Patent
Authors
Yen, William M
Jia, Weiyi
Lu, Lizhu
Yuan, Huabiao
Date Acquired
August 24, 2013
Publication Date
July 31, 2001
Subject Category
Chemistry And Materials (General)
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-187943
Patent Number: US-PATENT-6,267,911
Funding Number(s)
CONTRACT_GRANT: NCCW-0088
CONTRACT_GRANT: NCC5-252
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-6,267,911
Patent Application
US-PATENT-APPL-SN-187943

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