The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 01, 2022

Filed:

May. 22, 2019
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Matthew David Butts, Rexford, NY (US);

James Edward Murphy, Niskayuna, NY (US);

Mark Daniel Doherty, Niskayuna, NY (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/61 (2006.01); C09K 11/02 (2006.01); F21V 8/00 (2006.01); H01L 33/50 (2010.01);
U.S. Cl.
CPC ...
C09K 11/617 (2013.01); C09K 11/02 (2013.01); G02B 6/005 (2013.01); G02B 6/0026 (2013.01); H01L 33/502 (2013.01); H01L 33/507 (2013.01);
Abstract

Briefly, in one aspect, the present invention relates to processes for producing a stabilized Mndoped phosphor in solid form and a composition containing such doped phosphor. Such process may include combining a) a solution comprising at least one substance selected from the group consisting of: KHPO, an aluminum phosphate, oxalic acid, phosphoric acid, a surfactant, a chelating agent, or a combination thereof, with b) a Mndoped phosphor of formula I in solid form, where formula I may be: A[MF]:Mn. The process can further include isolating the stabilized Mndoped phosphor in solid form. In formula I, A may be Li, Na, K, Rb, Cs, or a combination thereof. In formula I, M may be Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof. In formula I, x is the absolute value of the charge of the [MF] ion and y is 5, 6 or 7.


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