Manganese-activated metal nitrido-silicate luminescent substance

H.T.J.M. Hintzen (Inventor), C.J. Duan (Inventor), S. Roesler (Inventor), D. Starick (Inventor), S Roesler (Inventor)

Research output: PatentPatent publication

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Abstract

The invention relates to a luminescent substance made of metal nitrido-silicate that is actived using divalent manganese. Said luminescent substance can be described by general formula MxSiyN2/3x+4/3y:Mn2+ (wherein 0 <x and 0 <y), wherein M represents one or more metal ions, Si represents silicon which can be partially substituted by germanium, aluminum, boron, gallium, scandium, and/or phosphorus, and N represents nitrogen which can be partially substituted by oxygen. The invention further relates to a white-emitting LED comprising an element that emits exciting radiation and at least the disclosed luminescent substance which absorbs some of the exciting radiation and emits in a different spectral region.
Original languageEnglish
Patent numberWO2009003971
Publication statusPublished - 14 Oct 2008

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