US 11,718,788 B2
Red light and near-infrared light-emitting material and light-emitting device
Ronghui Liu, Beijing (CN); Yuanhong Liu, Beijing (CN); Xiaoxia Chen, Beijing (CN); Xiaole Ma, Beijing (CN); Yuan Xue, Beijing (CN); and Tongyu Gao, Beijing (CN)
Assigned to GRIREM ADVANCED MATERIALS CO., LTD, Beijing (CN)
Appl. No. 17/254,225
Filed by GRIREM ADVANCED MATERIALS CO., LTD, Beijing (CN)
PCT Filed Jul. 9, 2019, PCT No. PCT/CN2019/095239
§ 371(c)(1), (2) Date Dec. 18, 2020,
PCT Pub. No. WO2021/003665, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 201910614525.7 (CN), filed on Jul. 9, 2019.
Prior Publication US 2022/0119704 A1, Apr. 21, 2022
Int. Cl. C09K 11/77 (2006.01); H01L 33/26 (2010.01); H01L 33/50 (2010.01)
CPC C09K 11/7734 (2013.01) [C09K 11/7792 (2013.01); H01L 33/26 (2013.01); H01L 33/502 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A red light and near-infrared light-emitting material, containing a compound represented by a molecular formula, xA2O3·yIn2O3·bR2O3, wherein the element A is Sc and Ga; the element R is one or two of Cr, Yb, Nd or Er and necessarily comprises Cr; and 0.001≤x≤1, 0.001≤y≤1, 0.001≤b≤0.2, and 0.001≤b/(x+y)≤0.2, 0.001≤y/x≤0.65.