US 11,932,790 B2
Red light and near-infrared light-emitting material, preparation method thereof and light-emitting device
Xiaoxia Chen, Beijing (CN); Yuanhong Liu, Beijing (CN); Ronghui Liu, Beijing (CN); and Yuan Xue, Beijing (CN)
Assigned to GRIREM ADVANCED MATERIALS CO., LTD., Beijing (CN)
Appl. No. 17/254,224
Filed by Grirem Advanced Materials Co., Ltd, Beijing (CN)
PCT Filed Jul. 9, 2019, PCT No. PCT/CN2019/095238
§ 371(c)(1), (2) Date Dec. 18, 2020,
PCT Pub. No. WO2020/177257, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 201910614524.2 (CN), filed on Mar. 6, 2019.
Prior Publication US 2021/0388262 A1, Dec. 16, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 11/77 (2006.01); C01G 15/00 (2006.01); H01L 33/50 (2010.01)
CPC C09K 11/7708 (2013.01) [C01G 15/006 (2013.01); C09K 11/7776 (2013.01); H01L 33/502 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); H01L 2933/0041 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A red light and near-infrared light-emitting material, containing a compound represented by a molecular formula, aSc2O3·Ga2O3·bR2O3, wherein the element R comprises one or two of Cr, Ni, Fe, Yb, Nd or Er; 0.001≤a≤0.6; and 0.001≤b≤0.1.