US 11,926,775 B2
Narrow band emitting SiAION phosphor
Peter Josef Schmidt, Aachen (DE); Philipp-Jean Strobel, Aachen (DE); Volker Weiler, Aachen (DE); and Andreas Tücks, Aachen (DE)
Assigned to Lumileds LLC, San Jose, CA (US)
Appl. No. 17/781,528
Filed by LUMILEDS LLC, San Jose, CA (US)
PCT Filed Dec. 4, 2020, PCT No. PCT/US2020/063385
§ 371(c)(1), (2) Date Jun. 1, 2022,
PCT Pub. No. WO2021/113692, PCT Pub. Date Jun. 10, 2021.
Application 17/781,528 is a continuation of application No. 17/110,080, filed on Dec. 2, 2020, granted, now 11,453,821.
Claims priority of provisional application 62/944,025, filed on Dec. 5, 2019.
Claims priority of application No. 20151188 (EP), filed on Jan. 10, 2020.
Prior Publication US 2023/0002671 A1, Jan. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 11/77 (2006.01); C01B 21/082 (2006.01); C09K 11/08 (2006.01); H01L 33/50 (2010.01)
CPC C09K 11/0883 (2013.01) [C01B 21/0826 (2013.01); C09K 11/77348 (2021.01); H01L 33/502 (2013.01); C01P 2006/60 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A luminescent composition of matter characterized by the formula:
AE1−xLi3−2yAl1+2y−zSizO4−4y−zN4y+z:Eux;
AE=Ca,Sr,Ba, or a combination thereof;
0<x<0.04;
0.4<y<0.6; and
0<z<0.05,
the luminescent composition of matter having a tetragonal crystal structure.