IP Library Granted Patent US 10,479,936
Granted Patent B2
US 10,479,936 · App. 16/198,814 · Granted Nov 19, 2019

Phosphor and method for producing the phosphor

Inventors: Markus Seibald (Kaufering, DE); Dominik Baumann (Munich, DE); Stefan Lange (Augsburg, DE); Hubert Huppertz (Innsbruck, AT); Thorsten Schroeder (Munich, DE); Daniel Bichler (Augsburg, DE); Gudrun Plundrich (Biessenhofen, DE); Simon Peschke (Assling, DE); Gregor Hoerder (Innsbruck, AT); Gina Maya Achrainer (Greifenberg, DE); Klaus Wurst (Zirl, AT)
Assignee: OSRAM OPTO-SEMICONDUCTORS GMBH
C09K11/7734C09K11/0883
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Quick Facts
Patent No.
US 10,479,936
App. No.
16/198,814
Granted
Nov 19, 2019
Kind
B2
Abstract

A phosphor is specified. The phosphor has the general molecular formula: (MA) a (MB) b (MC) c (MD) d (TA) e (TB) f (TC) g (TD) h (TE) i (TF) j (XA) k (XB) l (XC) m (XD) n :E. In this case, MA is selected from a group of monovalent metals, MB is selected from a group of divalent metals, MC is selected from a group of trivalent metals, MD is selected from a group of tetravalent metals, TA is selected from a group of monovalent metals, TB is selected from a group of divalent metals, TC is selected from a group of trivalent metals, TD is selected from a group of tetravalent metals, TE is selected from a group of pentavalent elements, TF is selected from a group of hexavalent elements, XA is selected from a group of elements which comprises halogens, XB is selected from a group of elements which comprises O, S and combinations thereof, —E=Eu, Ce, Yb and/or Mn, XC=N and XD=C. The following furthermore hold true: a+b+c+d=t; e+f+g+h+i+j=u; k+l+m+n=v; a+2b+3c+4d+e+2f+3g+4h+5i+6j−k−2l−3m−4n=w; 0.8≤t≤1; 3.5≤u≤4; 3.5≤v≤4; (−0.2)≤w≤0.2 and 0≤m<0.875 v and/or v≥l>0.125 v.

Claims (7)

1. A phosphor having the general molecular formula (MB)Li 3−2x** Al 1+2x** O 4−4x** N 4x** :E, wherein

0<x**<0.875, MB is selected from a group of divalent metals which comprises Mg, Ca, Sr, Ba, Zn and combinations thereof, and E is selected from a group which comprises Eu, Mn, Ce, Yb and combinations thereof.

2. The phosphor as claimed in claim 1 , wherein 0.125≤x**<0.875.

3. The phosphor as claimed in claim 1 , wherein the phosphor has the formula SrLi 3−2x** Al 1+2x** O 4−4x** N 4x** :Eu, wherein 0<x**<0.875.

4. The phosphor as claimed in claim 3 , wherein 0.125≤x**<0.875.

5. The phosphor as claimed in claim 1 , wherein the phosphor crystallizes in a tetragonal crystal system.

6. The phosphor as claimed in claim 5 , wherein the phosphor crystallizes in the space group I4/m.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: OSRAM OPTO SEMICONDUCTORS GMBH
To: OSRAM OLED GMBH
Reel/Frame 051464/0504 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2019
From: BAUMANN, DOMINIK; DUTZLER, DANIEL; HUPPERTZ, HUBERT; LANGE, STEFAN; SEIBALD, MARKUS; PESCHKE, SIMON; SCHROEDER, THORSTEN; ACHRAINER, GINA MAYA; BICHLER, DANIEL; FIEDLER, TIM; HOERDER, GREGOR; PLUNDRICH, GUDRUN; WURST, KLAUS
To: OSRAM OPTO-SEMICONDUCTORS GMBH
Reel/Frame 048287/0167 →
Priority Claims (2)
DE 10 2016 114 993 · Aug 12, 2016 · national
DE 10 2016 121 692 · Nov 11, 2016 · national
Continuity (2)
Division 16302748
Related Publication 20190144744A1 · May 16, 2019
Cited By (1)
US 12,256,579