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:
May. 16, 2017
Filed:
Oct. 31, 2012
Ocean's King Lighting Science & Technology Co., Ltd., Shenzhen, CN;
Shenzhen Ocean's King Lighting Engineering Co., Ltd, Shenzhen, CN;
Mingjie Zhou, Shenzhen, CN;
Rong Wang, Shenzhen, CN;
OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
Provided is an oxysulfide luminescent material. The luminescent material has a general chemical formula of LnOS:Eu@M, wherein@ is coating, Eu is doped in LnOS, LnOS:Euhas a porous structure, and M is located in pores of the LnOS:Eu. In the oxysulfide luminescent material, metal nano particles coating is used to form a core-shell structure, which increases luminescent efficiency of the oxysulfide luminescent material in a same excitation condition; in addition, a hollow structure is formed between a core and a shell layer of the oxysulfide luminescent material, which effectively reduces usage of rare earth elements in the shell layer and lowers cost of the luminescent material. Also provided is a preparation method for the oxysulfide luminescent material.