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:
Sep. 20, 2016
Filed:
Jul. 31, 2012
Mingjie Zhou, Shenzhen, CN;
Rong Wang, Guangdong, CN;
Guitang Chen, Guangdong, CN;
OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., Shenzhen, CN;
SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD., Shenzhen, CN;
Abstract
The present invention provides a stannate fluorescent material having a formula: ASnO:Eu@SnO@M; wherein A is selected from the group consisting of Ca, Sr, and Ba; M is at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x≦0.05; y is a mole ratio of M to Sn, and 0<y≦1×10; @ represents coating, in the stannate fluorescent material, M serves as a core, SnOserves as an intermediate layer shell, and ASnO:Euserves as an outer layer shell. In the stannate fluorescent material, a core-shell structure is formed by coating at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu, since metal nanoparticles can improve the internal quantum efficiency of the fluorescent material, the stannate fluorescent material exhibits a higher luminous intensity.