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:
Mar. 24, 2015
Filed:
Feb. 04, 2010
Mingjie Zhou, Shenzhen, CN;
Jun Liu, Shenzhen, CN;
Xiaofang Liang, Shenzhen, CN;
Shiliang Liu, Shenzhen, CN;
Qiurong Liao, Shenzhen, CN;
Mingjie Zhou, Shenzhen, CN;
Jun Liu, Shenzhen, CN;
Xiaofang Liang, Shenzhen, CN;
Shiliang Liu, Shenzhen, CN;
Qiurong Liao, Shenzhen, CN;
Ocean's King Lighting Science & Technology Co., Ltd., Shenzhen, Guangdong, CN;
Abstract
Terbium doped phosphate-based green luminescent material and preparation method thereof are provided. The chemical formula of the material is MRETb(PO), wherein, M is alkaline-earth metals, RE is rare-earth elements, x is in a range of 0.001 to 1. The preparation method of the material includes the following steps; providing the compound used as the source of alkaline earth metal, the compound used as the source of phosphate, the compound used as the source of rare-earth, and the compound used as the source of Tbaccording to the molar ratio of the elements in MRETb(PO), wherein, the compound used as the source of phosphate is added at excess molar ratio in a range of 10% to 30%; mixing and grinding the compound to get mixture; sintering the mixture as pre-treatment, and then cooling the mixture to get a sintered matter; grinding; calcining in reducing atmosphere, and then cooling them.