The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Sep. 13, 2018
Grirem Advanced Materials Co., Ltd., Beijing, CN;
Guoke Re Advanced Materials Co., Ltd., Langfang, CN;
Ronghui Liu, Beijing, CN;
Yuanhong Liu, Beijing, CN;
Lei Chen, Beijing, CN;
Ze Jiang, Beijing, CN;
Lengleng Shao, Beijing, CN;
GRIREM ADVANCED MATERIALS CO., LTD., Beijing, CN;
GUOKE RE ADVANCED MATERIALS CO., LTD., Langfang, CN;
Abstract
The present invention belongs to the technical field of inorganic luminescent materials, particularly relates to a nitride fluorescent material, and further discloses a light-emitting device containing such a fluorescent material. The nitride fluorescent material contains a compound with a structure like MAlSiN: aR, bEu, cCe. The fluorescent material has very high physical stability and chemical stability, and the fluorescent material is better in crystallization, and thus has relatively high external quantum efficiency. When being applied to a light-emitting device, the fluorescent material can fully exert the advantages of good stability and high external quantum efficiency, and the light-emitting efficiency and stability of the light-emitting device can be further improved.